Anatomically Correct Succubus

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The succubi are popularly represented as women with horns and bat-like wings. They feed on the vital energy in myths, but could a humanoid creature resembling a woman evolve and feed only on human sperm? If so, what kind of animal and environment could trigger the evolution of succubi?



Note : These succubi don't really need to evolve horns and wings, just feed on human sperm and resemble a woman. They don't need to be attractive to humans. They just need an humanoid shape of any size with feminine traits and a predatory behaviour to ambush their prey.







share|improve this question


















  • 15




    The word succubus is a good word, describing a well-know fantastic being. They do not "feed on vital energy", and while they might have horns or wings, they most certainly don't appear to. They absolutely do appear attractive to men. Whatever it may be, this bizarre semen-eating being is not a succubus.
    – AlexP
    Aug 9 at 5:49







  • 3




    @AlexP, the succubus I am aware of feed on male semen, and causes night pollution in men to get their food by appearing like women in their dream.
    – L.Dutch♦
    Aug 9 at 8:04






  • 11




    @L.Dutch: A standard succubus is a female demon who appears in men's dreams and seduces them. (The corresponding male demon is an incubus.) Their seductiveness is an essential aspect. As supernatural beings they do not feed on sublunar substances such as semen.
    – AlexP
    Aug 9 at 8:08







  • 7




    1) Succubi don't "feed" on semen. They collect the semen, switch their form to incubus and use it for impregnating women. Rationale is to work around a limitation of ungodly creatures being incapable of an Act of Creation. Succubi/incubi could be eating at your local salad bar (to stay fit and attractive), if you want them to process energy like mortals. 2) If you want to quickly convince many people to have sex with you, you'd better be attractive as hell.
    – Agent_L
    Aug 9 at 12:00






  • 5




    a human sized creature would need to consume a tremendous amount of semen to receive enough calories. A single "event" only yields about 0.7 calories, the average adult human needs about 2000 calories a day, so she needs to sleep with about 3000 men per day. there is not enough hours in day. onlinelibrary.wiley.com/doi/full/10.2164/jandrol.04104.
    – John
    Aug 9 at 15:47















up vote
30
down vote

favorite
10












The succubi are popularly represented as women with horns and bat-like wings. They feed on the vital energy in myths, but could a humanoid creature resembling a woman evolve and feed only on human sperm? If so, what kind of animal and environment could trigger the evolution of succubi?



Note : These succubi don't really need to evolve horns and wings, just feed on human sperm and resemble a woman. They don't need to be attractive to humans. They just need an humanoid shape of any size with feminine traits and a predatory behaviour to ambush their prey.







share|improve this question


















  • 15




    The word succubus is a good word, describing a well-know fantastic being. They do not "feed on vital energy", and while they might have horns or wings, they most certainly don't appear to. They absolutely do appear attractive to men. Whatever it may be, this bizarre semen-eating being is not a succubus.
    – AlexP
    Aug 9 at 5:49







  • 3




    @AlexP, the succubus I am aware of feed on male semen, and causes night pollution in men to get their food by appearing like women in their dream.
    – L.Dutch♦
    Aug 9 at 8:04






  • 11




    @L.Dutch: A standard succubus is a female demon who appears in men's dreams and seduces them. (The corresponding male demon is an incubus.) Their seductiveness is an essential aspect. As supernatural beings they do not feed on sublunar substances such as semen.
    – AlexP
    Aug 9 at 8:08







  • 7




    1) Succubi don't "feed" on semen. They collect the semen, switch their form to incubus and use it for impregnating women. Rationale is to work around a limitation of ungodly creatures being incapable of an Act of Creation. Succubi/incubi could be eating at your local salad bar (to stay fit and attractive), if you want them to process energy like mortals. 2) If you want to quickly convince many people to have sex with you, you'd better be attractive as hell.
    – Agent_L
    Aug 9 at 12:00






  • 5




    a human sized creature would need to consume a tremendous amount of semen to receive enough calories. A single "event" only yields about 0.7 calories, the average adult human needs about 2000 calories a day, so she needs to sleep with about 3000 men per day. there is not enough hours in day. onlinelibrary.wiley.com/doi/full/10.2164/jandrol.04104.
    – John
    Aug 9 at 15:47













up vote
30
down vote

favorite
10









up vote
30
down vote

favorite
10






10





The succubi are popularly represented as women with horns and bat-like wings. They feed on the vital energy in myths, but could a humanoid creature resembling a woman evolve and feed only on human sperm? If so, what kind of animal and environment could trigger the evolution of succubi?



Note : These succubi don't really need to evolve horns and wings, just feed on human sperm and resemble a woman. They don't need to be attractive to humans. They just need an humanoid shape of any size with feminine traits and a predatory behaviour to ambush their prey.







share|improve this question














The succubi are popularly represented as women with horns and bat-like wings. They feed on the vital energy in myths, but could a humanoid creature resembling a woman evolve and feed only on human sperm? If so, what kind of animal and environment could trigger the evolution of succubi?



Note : These succubi don't really need to evolve horns and wings, just feed on human sperm and resemble a woman. They don't need to be attractive to humans. They just need an humanoid shape of any size with feminine traits and a predatory behaviour to ambush their prey.









share|improve this question













share|improve this question




share|improve this question








edited Aug 9 at 3:34









Brythan

19.5k74182




19.5k74182










asked Aug 9 at 3:24









Seraph Myrmidon

1




1







  • 15




    The word succubus is a good word, describing a well-know fantastic being. They do not "feed on vital energy", and while they might have horns or wings, they most certainly don't appear to. They absolutely do appear attractive to men. Whatever it may be, this bizarre semen-eating being is not a succubus.
    – AlexP
    Aug 9 at 5:49







  • 3




    @AlexP, the succubus I am aware of feed on male semen, and causes night pollution in men to get their food by appearing like women in their dream.
    – L.Dutch♦
    Aug 9 at 8:04






  • 11




    @L.Dutch: A standard succubus is a female demon who appears in men's dreams and seduces them. (The corresponding male demon is an incubus.) Their seductiveness is an essential aspect. As supernatural beings they do not feed on sublunar substances such as semen.
    – AlexP
    Aug 9 at 8:08







  • 7




    1) Succubi don't "feed" on semen. They collect the semen, switch their form to incubus and use it for impregnating women. Rationale is to work around a limitation of ungodly creatures being incapable of an Act of Creation. Succubi/incubi could be eating at your local salad bar (to stay fit and attractive), if you want them to process energy like mortals. 2) If you want to quickly convince many people to have sex with you, you'd better be attractive as hell.
    – Agent_L
    Aug 9 at 12:00






  • 5




    a human sized creature would need to consume a tremendous amount of semen to receive enough calories. A single "event" only yields about 0.7 calories, the average adult human needs about 2000 calories a day, so she needs to sleep with about 3000 men per day. there is not enough hours in day. onlinelibrary.wiley.com/doi/full/10.2164/jandrol.04104.
    – John
    Aug 9 at 15:47













  • 15




    The word succubus is a good word, describing a well-know fantastic being. They do not "feed on vital energy", and while they might have horns or wings, they most certainly don't appear to. They absolutely do appear attractive to men. Whatever it may be, this bizarre semen-eating being is not a succubus.
    – AlexP
    Aug 9 at 5:49







  • 3




    @AlexP, the succubus I am aware of feed on male semen, and causes night pollution in men to get their food by appearing like women in their dream.
    – L.Dutch♦
    Aug 9 at 8:04






  • 11




    @L.Dutch: A standard succubus is a female demon who appears in men's dreams and seduces them. (The corresponding male demon is an incubus.) Their seductiveness is an essential aspect. As supernatural beings they do not feed on sublunar substances such as semen.
    – AlexP
    Aug 9 at 8:08







  • 7




    1) Succubi don't "feed" on semen. They collect the semen, switch their form to incubus and use it for impregnating women. Rationale is to work around a limitation of ungodly creatures being incapable of an Act of Creation. Succubi/incubi could be eating at your local salad bar (to stay fit and attractive), if you want them to process energy like mortals. 2) If you want to quickly convince many people to have sex with you, you'd better be attractive as hell.
    – Agent_L
    Aug 9 at 12:00






  • 5




    a human sized creature would need to consume a tremendous amount of semen to receive enough calories. A single "event" only yields about 0.7 calories, the average adult human needs about 2000 calories a day, so she needs to sleep with about 3000 men per day. there is not enough hours in day. onlinelibrary.wiley.com/doi/full/10.2164/jandrol.04104.
    – John
    Aug 9 at 15:47








15




15




The word succubus is a good word, describing a well-know fantastic being. They do not "feed on vital energy", and while they might have horns or wings, they most certainly don't appear to. They absolutely do appear attractive to men. Whatever it may be, this bizarre semen-eating being is not a succubus.
– AlexP
Aug 9 at 5:49





The word succubus is a good word, describing a well-know fantastic being. They do not "feed on vital energy", and while they might have horns or wings, they most certainly don't appear to. They absolutely do appear attractive to men. Whatever it may be, this bizarre semen-eating being is not a succubus.
– AlexP
Aug 9 at 5:49





3




3




@AlexP, the succubus I am aware of feed on male semen, and causes night pollution in men to get their food by appearing like women in their dream.
– L.Dutch♦
Aug 9 at 8:04




@AlexP, the succubus I am aware of feed on male semen, and causes night pollution in men to get their food by appearing like women in their dream.
– L.Dutch♦
Aug 9 at 8:04




11




11




@L.Dutch: A standard succubus is a female demon who appears in men's dreams and seduces them. (The corresponding male demon is an incubus.) Their seductiveness is an essential aspect. As supernatural beings they do not feed on sublunar substances such as semen.
– AlexP
Aug 9 at 8:08





@L.Dutch: A standard succubus is a female demon who appears in men's dreams and seduces them. (The corresponding male demon is an incubus.) Their seductiveness is an essential aspect. As supernatural beings they do not feed on sublunar substances such as semen.
– AlexP
Aug 9 at 8:08





7




7




1) Succubi don't "feed" on semen. They collect the semen, switch their form to incubus and use it for impregnating women. Rationale is to work around a limitation of ungodly creatures being incapable of an Act of Creation. Succubi/incubi could be eating at your local salad bar (to stay fit and attractive), if you want them to process energy like mortals. 2) If you want to quickly convince many people to have sex with you, you'd better be attractive as hell.
– Agent_L
Aug 9 at 12:00




1) Succubi don't "feed" on semen. They collect the semen, switch their form to incubus and use it for impregnating women. Rationale is to work around a limitation of ungodly creatures being incapable of an Act of Creation. Succubi/incubi could be eating at your local salad bar (to stay fit and attractive), if you want them to process energy like mortals. 2) If you want to quickly convince many people to have sex with you, you'd better be attractive as hell.
– Agent_L
Aug 9 at 12:00




5




5




a human sized creature would need to consume a tremendous amount of semen to receive enough calories. A single "event" only yields about 0.7 calories, the average adult human needs about 2000 calories a day, so she needs to sleep with about 3000 men per day. there is not enough hours in day. onlinelibrary.wiley.com/doi/full/10.2164/jandrol.04104.
– John
Aug 9 at 15:47





a human sized creature would need to consume a tremendous amount of semen to receive enough calories. A single "event" only yields about 0.7 calories, the average adult human needs about 2000 calories a day, so she needs to sleep with about 3000 men per day. there is not enough hours in day. onlinelibrary.wiley.com/doi/full/10.2164/jandrol.04104.
– John
Aug 9 at 15:47











4 Answers
4






active

oldest

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up vote
71
down vote













Warning - answer below might not be suitable for some readers.



Sounds to me like a parasite is the most likely evolutionary track. We can imagine a creature like Cymothoa exigua - but instead of an aquatic crustacean, this creature is an evolved pubic louse that takes up residence in a women's vagina and eats the sperm of any male that mates with her.



Evolution could favor a creature that was able to more closely mimic the vagina itself, or part there of, to better camouflage itself. Perhaps the creature evolves to produce secretions that would promote the male orgasm. Or it could produce pheromones, or stimulate its host to make pheromones that make her more attractive to males. Further, the creature could interrupt the hosts menstrual cycle to maximize its hosts sexual availability and its chances for a sperm meal. The creature could also stimulate hormone production in the host that made her sexual appetite ramp up and tended to make her seek out sexual partners.



While this is not a devil woman itself, the concept is pretty horrifying. If you've a strong stomach, just look at images of the Cymothoa exigua parasite on google, and then imagine the creature that evolves to fit the ecology above....I'm not sleeping tonight.



And, as described, a woman hosting this imaginary parasite would be sensual and powerfully attractive to males, while she herself would be sexually promiscuous. Any male having sex with this woman would experience an overwhelming orgasm.



And of course, we must expect that during sex, the parasite would transfer eggs or larva into the mans penis, which would spend part of their life cycle in the male and then transfer via his ejaculate to infect any healthy woman he has sex with.



And who knows what effects we can imagine for the infected male? Does he suffer a madness? A wasting? Other behavioral or physical changes that could be mistaken for demonic possession or infestation? The overall effects of infection, for both the male and female, might get us pretty close to the tales of the succubus from folklore.






share|improve this answer


















  • 6




    OMG....this is becoming a Wes craven film pitch....
    – Jim
    Aug 9 at 5:44






  • 31




    This is, given what we know of nature, horrifyingly plausible.
    – Joe Bloggs
    Aug 9 at 7:15






  • 6




    There is a reason that a professor during my under-grad said that 'Anything you see in a horror movie, has been done by nature in a more horrifying way'. A difference equally horrifying example that illustrates behavioural change are the ant controlling fungi,
    – Bas Jansen
    Aug 9 at 9:47






  • 7




    I actually saw a poster at a scientific conference recently which described a fungus with just this lifestyle. Fortunately it infects cicadas and not humans.
    – brendan
    Aug 9 at 14:14






  • 9




    Seems to me, the effect on the infected male, since this parasite can affect behavior and mentality (like other parasites do), would be to compel him to mate with as many women as possible. If seduction doesn't work, perhaps rape will. It could impair his impulse control, so he spends money and goes into debt with hookers, cheating on his girlfriend or wife, sexually harassing co-workers or subordinates, basically loses control of his life and becomes a sex addict, mating with new women at any cost, even his freedom. Wow, I'm starting to think this thing is already out there...
    – Amadeus
    Aug 9 at 15:11

















up vote
20
down vote













I am going to expand on my comment on Jim's answer, still using Cymothoa exigua and holding to the same warning for sensible readers.



A female parasite with similar behavior to Cymothoa exigua installs itself on the infected host's tongue. By removing the blood flow, it causes the tongue atrophy, after which the parasite replace its functionality.



Being connected to the host's blood system, it can both have metabolic and hormonal exchanges with it.



It can secrete substances that increase the host's libido and also influence the preferences on the matter of sexual act, making the host more inclined toward oral sex. Physical stimulation of the tongue/parasite causes the release of endorphins into the blood stream, giving physical pleasure to the host.



The parasite can provide a stronger stimulation to the host's partner than the original tongue, and also influence the host's behavior to clench on the partner until the very end. Once semen is released, the parasite absorb most of it through its surface. And while the semen is in contact with the parasite, the parasite releases further shots of endorphins into the host's bloodstream, increasing the chances of a prolonged contact, resulting in longer nutrition for the parasite.



Eggs can be transmitted by simple intimate kiss, and for what is worth the parasite can infect both males and females.



The male of the parasite can be much smaller and install itself in the oral cavity, gathering nutrition in the same way.






share|improve this answer


















  • 9




    Cue gay incubi.
    – Joe Bloggs
    Aug 9 at 8:17










  • This looks like Pornhub's version of The Bay.
    – T. Sar
    Aug 10 at 20:27

















up vote
11
down vote













Contrary to some of the comments, human semen does not contain that many calories (I can't find a reputable source for this I'm afraid, but it's listed plenty of places eg https://jezebel.com/a-complete-breakdown-of-the-nutritional-content-of-seme-953356816). A typical ejaculation contains about 20 calories, so the size of the succubus would be limited to that of a small mammal, unless it can obtain multiple feedings per night.
For reference, the Eastern Gray Squirrel of 500g requires 137 calories (https://www.jstor.org/stable/3799379?seq=1#page_scan_tab_contents)



Therefore, I would suggest that any creature that size would not be sexually attractive (to most people!), neither would it be big enough to ambush a human to forcefully harvest sperm (Perhaps they work in packs?!).
It would have to either have some sort of secretion or venom that would render its target unconsious or paralaysed, or as suggested, be able to manipulate the dreams of the target and feed on their wet dreams.






share|improve this answer






















  • Welcome to Worldbuilding, Markyyys! If you have a moment, please take the tour and visit the help center to learn more about the site. You may also find Worldbuilding Meta and The Sandbox (both of which require 5 rep to post on) useful. Here is a meta post on the culture and style of Worldbuilding.SE, just to help you understand our scope and methods, and how we do things here. Have fun!
    – Gryphon
    Aug 9 at 14:58






  • 1




    If they work in packs, they have to share the 'food', right?
    – Mark
    Aug 10 at 20:58










  • @Mark Yes, I guess they would - now that's a scary thought!
    – Markyyys
    Aug 13 at 9:36

















up vote
6
down vote













Alternative track: I think you're focusing on the physical instead of the traditional feeding. They weren't surviving on the physical result, they were eating the soul/emotion of the victim. The sexual coupling was either to make the spiritual connection (remember, most pre-modern and many modern folks think of sex as a spiritual connection) to feed. In some variants, it was just the bait, and the sex was irrelevant while the demon ate your soul.



If you're going for a less spiritual more "real-world" version of them, think "energy vampire".






share|improve this answer




















  • The sex would also be a good distraction while they ate your soul, you would be less likely to notice something going wrong until too late.
    – Loren Pechtel
    Aug 11 at 3:03










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4 Answers
4






active

oldest

votes








4 Answers
4






active

oldest

votes









active

oldest

votes






active

oldest

votes








up vote
71
down vote













Warning - answer below might not be suitable for some readers.



Sounds to me like a parasite is the most likely evolutionary track. We can imagine a creature like Cymothoa exigua - but instead of an aquatic crustacean, this creature is an evolved pubic louse that takes up residence in a women's vagina and eats the sperm of any male that mates with her.



Evolution could favor a creature that was able to more closely mimic the vagina itself, or part there of, to better camouflage itself. Perhaps the creature evolves to produce secretions that would promote the male orgasm. Or it could produce pheromones, or stimulate its host to make pheromones that make her more attractive to males. Further, the creature could interrupt the hosts menstrual cycle to maximize its hosts sexual availability and its chances for a sperm meal. The creature could also stimulate hormone production in the host that made her sexual appetite ramp up and tended to make her seek out sexual partners.



While this is not a devil woman itself, the concept is pretty horrifying. If you've a strong stomach, just look at images of the Cymothoa exigua parasite on google, and then imagine the creature that evolves to fit the ecology above....I'm not sleeping tonight.



And, as described, a woman hosting this imaginary parasite would be sensual and powerfully attractive to males, while she herself would be sexually promiscuous. Any male having sex with this woman would experience an overwhelming orgasm.



And of course, we must expect that during sex, the parasite would transfer eggs or larva into the mans penis, which would spend part of their life cycle in the male and then transfer via his ejaculate to infect any healthy woman he has sex with.



And who knows what effects we can imagine for the infected male? Does he suffer a madness? A wasting? Other behavioral or physical changes that could be mistaken for demonic possession or infestation? The overall effects of infection, for both the male and female, might get us pretty close to the tales of the succubus from folklore.






share|improve this answer


















  • 6




    OMG....this is becoming a Wes craven film pitch....
    – Jim
    Aug 9 at 5:44






  • 31




    This is, given what we know of nature, horrifyingly plausible.
    – Joe Bloggs
    Aug 9 at 7:15






  • 6




    There is a reason that a professor during my under-grad said that 'Anything you see in a horror movie, has been done by nature in a more horrifying way'. A difference equally horrifying example that illustrates behavioural change are the ant controlling fungi,
    – Bas Jansen
    Aug 9 at 9:47






  • 7




    I actually saw a poster at a scientific conference recently which described a fungus with just this lifestyle. Fortunately it infects cicadas and not humans.
    – brendan
    Aug 9 at 14:14






  • 9




    Seems to me, the effect on the infected male, since this parasite can affect behavior and mentality (like other parasites do), would be to compel him to mate with as many women as possible. If seduction doesn't work, perhaps rape will. It could impair his impulse control, so he spends money and goes into debt with hookers, cheating on his girlfriend or wife, sexually harassing co-workers or subordinates, basically loses control of his life and becomes a sex addict, mating with new women at any cost, even his freedom. Wow, I'm starting to think this thing is already out there...
    – Amadeus
    Aug 9 at 15:11














up vote
71
down vote













Warning - answer below might not be suitable for some readers.



Sounds to me like a parasite is the most likely evolutionary track. We can imagine a creature like Cymothoa exigua - but instead of an aquatic crustacean, this creature is an evolved pubic louse that takes up residence in a women's vagina and eats the sperm of any male that mates with her.



Evolution could favor a creature that was able to more closely mimic the vagina itself, or part there of, to better camouflage itself. Perhaps the creature evolves to produce secretions that would promote the male orgasm. Or it could produce pheromones, or stimulate its host to make pheromones that make her more attractive to males. Further, the creature could interrupt the hosts menstrual cycle to maximize its hosts sexual availability and its chances for a sperm meal. The creature could also stimulate hormone production in the host that made her sexual appetite ramp up and tended to make her seek out sexual partners.



While this is not a devil woman itself, the concept is pretty horrifying. If you've a strong stomach, just look at images of the Cymothoa exigua parasite on google, and then imagine the creature that evolves to fit the ecology above....I'm not sleeping tonight.



And, as described, a woman hosting this imaginary parasite would be sensual and powerfully attractive to males, while she herself would be sexually promiscuous. Any male having sex with this woman would experience an overwhelming orgasm.



And of course, we must expect that during sex, the parasite would transfer eggs or larva into the mans penis, which would spend part of their life cycle in the male and then transfer via his ejaculate to infect any healthy woman he has sex with.



And who knows what effects we can imagine for the infected male? Does he suffer a madness? A wasting? Other behavioral or physical changes that could be mistaken for demonic possession or infestation? The overall effects of infection, for both the male and female, might get us pretty close to the tales of the succubus from folklore.






share|improve this answer


















  • 6




    OMG....this is becoming a Wes craven film pitch....
    – Jim
    Aug 9 at 5:44






  • 31




    This is, given what we know of nature, horrifyingly plausible.
    – Joe Bloggs
    Aug 9 at 7:15






  • 6




    There is a reason that a professor during my under-grad said that 'Anything you see in a horror movie, has been done by nature in a more horrifying way'. A difference equally horrifying example that illustrates behavioural change are the ant controlling fungi,
    – Bas Jansen
    Aug 9 at 9:47






  • 7




    I actually saw a poster at a scientific conference recently which described a fungus with just this lifestyle. Fortunately it infects cicadas and not humans.
    – brendan
    Aug 9 at 14:14






  • 9




    Seems to me, the effect on the infected male, since this parasite can affect behavior and mentality (like other parasites do), would be to compel him to mate with as many women as possible. If seduction doesn't work, perhaps rape will. It could impair his impulse control, so he spends money and goes into debt with hookers, cheating on his girlfriend or wife, sexually harassing co-workers or subordinates, basically loses control of his life and becomes a sex addict, mating with new women at any cost, even his freedom. Wow, I'm starting to think this thing is already out there...
    – Amadeus
    Aug 9 at 15:11












up vote
71
down vote










up vote
71
down vote









Warning - answer below might not be suitable for some readers.



Sounds to me like a parasite is the most likely evolutionary track. We can imagine a creature like Cymothoa exigua - but instead of an aquatic crustacean, this creature is an evolved pubic louse that takes up residence in a women's vagina and eats the sperm of any male that mates with her.



Evolution could favor a creature that was able to more closely mimic the vagina itself, or part there of, to better camouflage itself. Perhaps the creature evolves to produce secretions that would promote the male orgasm. Or it could produce pheromones, or stimulate its host to make pheromones that make her more attractive to males. Further, the creature could interrupt the hosts menstrual cycle to maximize its hosts sexual availability and its chances for a sperm meal. The creature could also stimulate hormone production in the host that made her sexual appetite ramp up and tended to make her seek out sexual partners.



While this is not a devil woman itself, the concept is pretty horrifying. If you've a strong stomach, just look at images of the Cymothoa exigua parasite on google, and then imagine the creature that evolves to fit the ecology above....I'm not sleeping tonight.



And, as described, a woman hosting this imaginary parasite would be sensual and powerfully attractive to males, while she herself would be sexually promiscuous. Any male having sex with this woman would experience an overwhelming orgasm.



And of course, we must expect that during sex, the parasite would transfer eggs or larva into the mans penis, which would spend part of their life cycle in the male and then transfer via his ejaculate to infect any healthy woman he has sex with.



And who knows what effects we can imagine for the infected male? Does he suffer a madness? A wasting? Other behavioral or physical changes that could be mistaken for demonic possession or infestation? The overall effects of infection, for both the male and female, might get us pretty close to the tales of the succubus from folklore.






share|improve this answer














Warning - answer below might not be suitable for some readers.



Sounds to me like a parasite is the most likely evolutionary track. We can imagine a creature like Cymothoa exigua - but instead of an aquatic crustacean, this creature is an evolved pubic louse that takes up residence in a women's vagina and eats the sperm of any male that mates with her.



Evolution could favor a creature that was able to more closely mimic the vagina itself, or part there of, to better camouflage itself. Perhaps the creature evolves to produce secretions that would promote the male orgasm. Or it could produce pheromones, or stimulate its host to make pheromones that make her more attractive to males. Further, the creature could interrupt the hosts menstrual cycle to maximize its hosts sexual availability and its chances for a sperm meal. The creature could also stimulate hormone production in the host that made her sexual appetite ramp up and tended to make her seek out sexual partners.



While this is not a devil woman itself, the concept is pretty horrifying. If you've a strong stomach, just look at images of the Cymothoa exigua parasite on google, and then imagine the creature that evolves to fit the ecology above....I'm not sleeping tonight.



And, as described, a woman hosting this imaginary parasite would be sensual and powerfully attractive to males, while she herself would be sexually promiscuous. Any male having sex with this woman would experience an overwhelming orgasm.



And of course, we must expect that during sex, the parasite would transfer eggs or larva into the mans penis, which would spend part of their life cycle in the male and then transfer via his ejaculate to infect any healthy woman he has sex with.



And who knows what effects we can imagine for the infected male? Does he suffer a madness? A wasting? Other behavioral or physical changes that could be mistaken for demonic possession or infestation? The overall effects of infection, for both the male and female, might get us pretty close to the tales of the succubus from folklore.







share|improve this answer














share|improve this answer



share|improve this answer








edited Aug 9 at 18:23









Secespitus

14.4k861100




14.4k861100










answered Aug 9 at 4:32









Jim

1,8181411




1,8181411







  • 6




    OMG....this is becoming a Wes craven film pitch....
    – Jim
    Aug 9 at 5:44






  • 31




    This is, given what we know of nature, horrifyingly plausible.
    – Joe Bloggs
    Aug 9 at 7:15






  • 6




    There is a reason that a professor during my under-grad said that 'Anything you see in a horror movie, has been done by nature in a more horrifying way'. A difference equally horrifying example that illustrates behavioural change are the ant controlling fungi,
    – Bas Jansen
    Aug 9 at 9:47






  • 7




    I actually saw a poster at a scientific conference recently which described a fungus with just this lifestyle. Fortunately it infects cicadas and not humans.
    – brendan
    Aug 9 at 14:14






  • 9




    Seems to me, the effect on the infected male, since this parasite can affect behavior and mentality (like other parasites do), would be to compel him to mate with as many women as possible. If seduction doesn't work, perhaps rape will. It could impair his impulse control, so he spends money and goes into debt with hookers, cheating on his girlfriend or wife, sexually harassing co-workers or subordinates, basically loses control of his life and becomes a sex addict, mating with new women at any cost, even his freedom. Wow, I'm starting to think this thing is already out there...
    – Amadeus
    Aug 9 at 15:11












  • 6




    OMG....this is becoming a Wes craven film pitch....
    – Jim
    Aug 9 at 5:44






  • 31




    This is, given what we know of nature, horrifyingly plausible.
    – Joe Bloggs
    Aug 9 at 7:15






  • 6




    There is a reason that a professor during my under-grad said that 'Anything you see in a horror movie, has been done by nature in a more horrifying way'. A difference equally horrifying example that illustrates behavioural change are the ant controlling fungi,
    – Bas Jansen
    Aug 9 at 9:47






  • 7




    I actually saw a poster at a scientific conference recently which described a fungus with just this lifestyle. Fortunately it infects cicadas and not humans.
    – brendan
    Aug 9 at 14:14






  • 9




    Seems to me, the effect on the infected male, since this parasite can affect behavior and mentality (like other parasites do), would be to compel him to mate with as many women as possible. If seduction doesn't work, perhaps rape will. It could impair his impulse control, so he spends money and goes into debt with hookers, cheating on his girlfriend or wife, sexually harassing co-workers or subordinates, basically loses control of his life and becomes a sex addict, mating with new women at any cost, even his freedom. Wow, I'm starting to think this thing is already out there...
    – Amadeus
    Aug 9 at 15:11







6




6




OMG....this is becoming a Wes craven film pitch....
– Jim
Aug 9 at 5:44




OMG....this is becoming a Wes craven film pitch....
– Jim
Aug 9 at 5:44




31




31




This is, given what we know of nature, horrifyingly plausible.
– Joe Bloggs
Aug 9 at 7:15




This is, given what we know of nature, horrifyingly plausible.
– Joe Bloggs
Aug 9 at 7:15




6




6




There is a reason that a professor during my under-grad said that 'Anything you see in a horror movie, has been done by nature in a more horrifying way'. A difference equally horrifying example that illustrates behavioural change are the ant controlling fungi,
– Bas Jansen
Aug 9 at 9:47




There is a reason that a professor during my under-grad said that 'Anything you see in a horror movie, has been done by nature in a more horrifying way'. A difference equally horrifying example that illustrates behavioural change are the ant controlling fungi,
– Bas Jansen
Aug 9 at 9:47




7




7




I actually saw a poster at a scientific conference recently which described a fungus with just this lifestyle. Fortunately it infects cicadas and not humans.
– brendan
Aug 9 at 14:14




I actually saw a poster at a scientific conference recently which described a fungus with just this lifestyle. Fortunately it infects cicadas and not humans.
– brendan
Aug 9 at 14:14




9




9




Seems to me, the effect on the infected male, since this parasite can affect behavior and mentality (like other parasites do), would be to compel him to mate with as many women as possible. If seduction doesn't work, perhaps rape will. It could impair his impulse control, so he spends money and goes into debt with hookers, cheating on his girlfriend or wife, sexually harassing co-workers or subordinates, basically loses control of his life and becomes a sex addict, mating with new women at any cost, even his freedom. Wow, I'm starting to think this thing is already out there...
– Amadeus
Aug 9 at 15:11




Seems to me, the effect on the infected male, since this parasite can affect behavior and mentality (like other parasites do), would be to compel him to mate with as many women as possible. If seduction doesn't work, perhaps rape will. It could impair his impulse control, so he spends money and goes into debt with hookers, cheating on his girlfriend or wife, sexually harassing co-workers or subordinates, basically loses control of his life and becomes a sex addict, mating with new women at any cost, even his freedom. Wow, I'm starting to think this thing is already out there...
– Amadeus
Aug 9 at 15:11










up vote
20
down vote













I am going to expand on my comment on Jim's answer, still using Cymothoa exigua and holding to the same warning for sensible readers.



A female parasite with similar behavior to Cymothoa exigua installs itself on the infected host's tongue. By removing the blood flow, it causes the tongue atrophy, after which the parasite replace its functionality.



Being connected to the host's blood system, it can both have metabolic and hormonal exchanges with it.



It can secrete substances that increase the host's libido and also influence the preferences on the matter of sexual act, making the host more inclined toward oral sex. Physical stimulation of the tongue/parasite causes the release of endorphins into the blood stream, giving physical pleasure to the host.



The parasite can provide a stronger stimulation to the host's partner than the original tongue, and also influence the host's behavior to clench on the partner until the very end. Once semen is released, the parasite absorb most of it through its surface. And while the semen is in contact with the parasite, the parasite releases further shots of endorphins into the host's bloodstream, increasing the chances of a prolonged contact, resulting in longer nutrition for the parasite.



Eggs can be transmitted by simple intimate kiss, and for what is worth the parasite can infect both males and females.



The male of the parasite can be much smaller and install itself in the oral cavity, gathering nutrition in the same way.






share|improve this answer


















  • 9




    Cue gay incubi.
    – Joe Bloggs
    Aug 9 at 8:17










  • This looks like Pornhub's version of The Bay.
    – T. Sar
    Aug 10 at 20:27














up vote
20
down vote













I am going to expand on my comment on Jim's answer, still using Cymothoa exigua and holding to the same warning for sensible readers.



A female parasite with similar behavior to Cymothoa exigua installs itself on the infected host's tongue. By removing the blood flow, it causes the tongue atrophy, after which the parasite replace its functionality.



Being connected to the host's blood system, it can both have metabolic and hormonal exchanges with it.



It can secrete substances that increase the host's libido and also influence the preferences on the matter of sexual act, making the host more inclined toward oral sex. Physical stimulation of the tongue/parasite causes the release of endorphins into the blood stream, giving physical pleasure to the host.



The parasite can provide a stronger stimulation to the host's partner than the original tongue, and also influence the host's behavior to clench on the partner until the very end. Once semen is released, the parasite absorb most of it through its surface. And while the semen is in contact with the parasite, the parasite releases further shots of endorphins into the host's bloodstream, increasing the chances of a prolonged contact, resulting in longer nutrition for the parasite.



Eggs can be transmitted by simple intimate kiss, and for what is worth the parasite can infect both males and females.



The male of the parasite can be much smaller and install itself in the oral cavity, gathering nutrition in the same way.






share|improve this answer


















  • 9




    Cue gay incubi.
    – Joe Bloggs
    Aug 9 at 8:17










  • This looks like Pornhub's version of The Bay.
    – T. Sar
    Aug 10 at 20:27












up vote
20
down vote










up vote
20
down vote









I am going to expand on my comment on Jim's answer, still using Cymothoa exigua and holding to the same warning for sensible readers.



A female parasite with similar behavior to Cymothoa exigua installs itself on the infected host's tongue. By removing the blood flow, it causes the tongue atrophy, after which the parasite replace its functionality.



Being connected to the host's blood system, it can both have metabolic and hormonal exchanges with it.



It can secrete substances that increase the host's libido and also influence the preferences on the matter of sexual act, making the host more inclined toward oral sex. Physical stimulation of the tongue/parasite causes the release of endorphins into the blood stream, giving physical pleasure to the host.



The parasite can provide a stronger stimulation to the host's partner than the original tongue, and also influence the host's behavior to clench on the partner until the very end. Once semen is released, the parasite absorb most of it through its surface. And while the semen is in contact with the parasite, the parasite releases further shots of endorphins into the host's bloodstream, increasing the chances of a prolonged contact, resulting in longer nutrition for the parasite.



Eggs can be transmitted by simple intimate kiss, and for what is worth the parasite can infect both males and females.



The male of the parasite can be much smaller and install itself in the oral cavity, gathering nutrition in the same way.






share|improve this answer














I am going to expand on my comment on Jim's answer, still using Cymothoa exigua and holding to the same warning for sensible readers.



A female parasite with similar behavior to Cymothoa exigua installs itself on the infected host's tongue. By removing the blood flow, it causes the tongue atrophy, after which the parasite replace its functionality.



Being connected to the host's blood system, it can both have metabolic and hormonal exchanges with it.



It can secrete substances that increase the host's libido and also influence the preferences on the matter of sexual act, making the host more inclined toward oral sex. Physical stimulation of the tongue/parasite causes the release of endorphins into the blood stream, giving physical pleasure to the host.



The parasite can provide a stronger stimulation to the host's partner than the original tongue, and also influence the host's behavior to clench on the partner until the very end. Once semen is released, the parasite absorb most of it through its surface. And while the semen is in contact with the parasite, the parasite releases further shots of endorphins into the host's bloodstream, increasing the chances of a prolonged contact, resulting in longer nutrition for the parasite.



Eggs can be transmitted by simple intimate kiss, and for what is worth the parasite can infect both males and females.



The male of the parasite can be much smaller and install itself in the oral cavity, gathering nutrition in the same way.







share|improve this answer














share|improve this answer



share|improve this answer








edited Aug 9 at 10:04

























answered Aug 9 at 7:53









L.Dutch♦

60.7k17142284




60.7k17142284







  • 9




    Cue gay incubi.
    – Joe Bloggs
    Aug 9 at 8:17










  • This looks like Pornhub's version of The Bay.
    – T. Sar
    Aug 10 at 20:27












  • 9




    Cue gay incubi.
    – Joe Bloggs
    Aug 9 at 8:17










  • This looks like Pornhub's version of The Bay.
    – T. Sar
    Aug 10 at 20:27







9




9




Cue gay incubi.
– Joe Bloggs
Aug 9 at 8:17




Cue gay incubi.
– Joe Bloggs
Aug 9 at 8:17












This looks like Pornhub's version of The Bay.
– T. Sar
Aug 10 at 20:27




This looks like Pornhub's version of The Bay.
– T. Sar
Aug 10 at 20:27










up vote
11
down vote













Contrary to some of the comments, human semen does not contain that many calories (I can't find a reputable source for this I'm afraid, but it's listed plenty of places eg https://jezebel.com/a-complete-breakdown-of-the-nutritional-content-of-seme-953356816). A typical ejaculation contains about 20 calories, so the size of the succubus would be limited to that of a small mammal, unless it can obtain multiple feedings per night.
For reference, the Eastern Gray Squirrel of 500g requires 137 calories (https://www.jstor.org/stable/3799379?seq=1#page_scan_tab_contents)



Therefore, I would suggest that any creature that size would not be sexually attractive (to most people!), neither would it be big enough to ambush a human to forcefully harvest sperm (Perhaps they work in packs?!).
It would have to either have some sort of secretion or venom that would render its target unconsious or paralaysed, or as suggested, be able to manipulate the dreams of the target and feed on their wet dreams.






share|improve this answer






















  • Welcome to Worldbuilding, Markyyys! If you have a moment, please take the tour and visit the help center to learn more about the site. You may also find Worldbuilding Meta and The Sandbox (both of which require 5 rep to post on) useful. Here is a meta post on the culture and style of Worldbuilding.SE, just to help you understand our scope and methods, and how we do things here. Have fun!
    – Gryphon
    Aug 9 at 14:58






  • 1




    If they work in packs, they have to share the 'food', right?
    – Mark
    Aug 10 at 20:58










  • @Mark Yes, I guess they would - now that's a scary thought!
    – Markyyys
    Aug 13 at 9:36














up vote
11
down vote













Contrary to some of the comments, human semen does not contain that many calories (I can't find a reputable source for this I'm afraid, but it's listed plenty of places eg https://jezebel.com/a-complete-breakdown-of-the-nutritional-content-of-seme-953356816). A typical ejaculation contains about 20 calories, so the size of the succubus would be limited to that of a small mammal, unless it can obtain multiple feedings per night.
For reference, the Eastern Gray Squirrel of 500g requires 137 calories (https://www.jstor.org/stable/3799379?seq=1#page_scan_tab_contents)



Therefore, I would suggest that any creature that size would not be sexually attractive (to most people!), neither would it be big enough to ambush a human to forcefully harvest sperm (Perhaps they work in packs?!).
It would have to either have some sort of secretion or venom that would render its target unconsious or paralaysed, or as suggested, be able to manipulate the dreams of the target and feed on their wet dreams.






share|improve this answer






















  • Welcome to Worldbuilding, Markyyys! If you have a moment, please take the tour and visit the help center to learn more about the site. You may also find Worldbuilding Meta and The Sandbox (both of which require 5 rep to post on) useful. Here is a meta post on the culture and style of Worldbuilding.SE, just to help you understand our scope and methods, and how we do things here. Have fun!
    – Gryphon
    Aug 9 at 14:58






  • 1




    If they work in packs, they have to share the 'food', right?
    – Mark
    Aug 10 at 20:58










  • @Mark Yes, I guess they would - now that's a scary thought!
    – Markyyys
    Aug 13 at 9:36












up vote
11
down vote










up vote
11
down vote









Contrary to some of the comments, human semen does not contain that many calories (I can't find a reputable source for this I'm afraid, but it's listed plenty of places eg https://jezebel.com/a-complete-breakdown-of-the-nutritional-content-of-seme-953356816). A typical ejaculation contains about 20 calories, so the size of the succubus would be limited to that of a small mammal, unless it can obtain multiple feedings per night.
For reference, the Eastern Gray Squirrel of 500g requires 137 calories (https://www.jstor.org/stable/3799379?seq=1#page_scan_tab_contents)



Therefore, I would suggest that any creature that size would not be sexually attractive (to most people!), neither would it be big enough to ambush a human to forcefully harvest sperm (Perhaps they work in packs?!).
It would have to either have some sort of secretion or venom that would render its target unconsious or paralaysed, or as suggested, be able to manipulate the dreams of the target and feed on their wet dreams.






share|improve this answer














Contrary to some of the comments, human semen does not contain that many calories (I can't find a reputable source for this I'm afraid, but it's listed plenty of places eg https://jezebel.com/a-complete-breakdown-of-the-nutritional-content-of-seme-953356816). A typical ejaculation contains about 20 calories, so the size of the succubus would be limited to that of a small mammal, unless it can obtain multiple feedings per night.
For reference, the Eastern Gray Squirrel of 500g requires 137 calories (https://www.jstor.org/stable/3799379?seq=1#page_scan_tab_contents)



Therefore, I would suggest that any creature that size would not be sexually attractive (to most people!), neither would it be big enough to ambush a human to forcefully harvest sperm (Perhaps they work in packs?!).
It would have to either have some sort of secretion or venom that would render its target unconsious or paralaysed, or as suggested, be able to manipulate the dreams of the target and feed on their wet dreams.







share|improve this answer














share|improve this answer



share|improve this answer








edited Aug 9 at 18:14









Renan

32k768164




32k768164










answered Aug 9 at 14:49









Markyyys

1113




1113











  • Welcome to Worldbuilding, Markyyys! If you have a moment, please take the tour and visit the help center to learn more about the site. You may also find Worldbuilding Meta and The Sandbox (both of which require 5 rep to post on) useful. Here is a meta post on the culture and style of Worldbuilding.SE, just to help you understand our scope and methods, and how we do things here. Have fun!
    – Gryphon
    Aug 9 at 14:58






  • 1




    If they work in packs, they have to share the 'food', right?
    – Mark
    Aug 10 at 20:58










  • @Mark Yes, I guess they would - now that's a scary thought!
    – Markyyys
    Aug 13 at 9:36
















  • Welcome to Worldbuilding, Markyyys! If you have a moment, please take the tour and visit the help center to learn more about the site. You may also find Worldbuilding Meta and The Sandbox (both of which require 5 rep to post on) useful. Here is a meta post on the culture and style of Worldbuilding.SE, just to help you understand our scope and methods, and how we do things here. Have fun!
    – Gryphon
    Aug 9 at 14:58






  • 1




    If they work in packs, they have to share the 'food', right?
    – Mark
    Aug 10 at 20:58










  • @Mark Yes, I guess they would - now that's a scary thought!
    – Markyyys
    Aug 13 at 9:36















Welcome to Worldbuilding, Markyyys! If you have a moment, please take the tour and visit the help center to learn more about the site. You may also find Worldbuilding Meta and The Sandbox (both of which require 5 rep to post on) useful. Here is a meta post on the culture and style of Worldbuilding.SE, just to help you understand our scope and methods, and how we do things here. Have fun!
– Gryphon
Aug 9 at 14:58




Welcome to Worldbuilding, Markyyys! If you have a moment, please take the tour and visit the help center to learn more about the site. You may also find Worldbuilding Meta and The Sandbox (both of which require 5 rep to post on) useful. Here is a meta post on the culture and style of Worldbuilding.SE, just to help you understand our scope and methods, and how we do things here. Have fun!
– Gryphon
Aug 9 at 14:58




1




1




If they work in packs, they have to share the 'food', right?
– Mark
Aug 10 at 20:58




If they work in packs, they have to share the 'food', right?
– Mark
Aug 10 at 20:58












@Mark Yes, I guess they would - now that's a scary thought!
– Markyyys
Aug 13 at 9:36




@Mark Yes, I guess they would - now that's a scary thought!
– Markyyys
Aug 13 at 9:36










up vote
6
down vote













Alternative track: I think you're focusing on the physical instead of the traditional feeding. They weren't surviving on the physical result, they were eating the soul/emotion of the victim. The sexual coupling was either to make the spiritual connection (remember, most pre-modern and many modern folks think of sex as a spiritual connection) to feed. In some variants, it was just the bait, and the sex was irrelevant while the demon ate your soul.



If you're going for a less spiritual more "real-world" version of them, think "energy vampire".






share|improve this answer




















  • The sex would also be a good distraction while they ate your soul, you would be less likely to notice something going wrong until too late.
    – Loren Pechtel
    Aug 11 at 3:03














up vote
6
down vote













Alternative track: I think you're focusing on the physical instead of the traditional feeding. They weren't surviving on the physical result, they were eating the soul/emotion of the victim. The sexual coupling was either to make the spiritual connection (remember, most pre-modern and many modern folks think of sex as a spiritual connection) to feed. In some variants, it was just the bait, and the sex was irrelevant while the demon ate your soul.



If you're going for a less spiritual more "real-world" version of them, think "energy vampire".






share|improve this answer




















  • The sex would also be a good distraction while they ate your soul, you would be less likely to notice something going wrong until too late.
    – Loren Pechtel
    Aug 11 at 3:03












up vote
6
down vote










up vote
6
down vote









Alternative track: I think you're focusing on the physical instead of the traditional feeding. They weren't surviving on the physical result, they were eating the soul/emotion of the victim. The sexual coupling was either to make the spiritual connection (remember, most pre-modern and many modern folks think of sex as a spiritual connection) to feed. In some variants, it was just the bait, and the sex was irrelevant while the demon ate your soul.



If you're going for a less spiritual more "real-world" version of them, think "energy vampire".






share|improve this answer












Alternative track: I think you're focusing on the physical instead of the traditional feeding. They weren't surviving on the physical result, they were eating the soul/emotion of the victim. The sexual coupling was either to make the spiritual connection (remember, most pre-modern and many modern folks think of sex as a spiritual connection) to feed. In some variants, it was just the bait, and the sex was irrelevant while the demon ate your soul.



If you're going for a less spiritual more "real-world" version of them, think "energy vampire".







share|improve this answer












share|improve this answer



share|improve this answer










answered Aug 9 at 13:25









JKreft

1812




1812











  • The sex would also be a good distraction while they ate your soul, you would be less likely to notice something going wrong until too late.
    – Loren Pechtel
    Aug 11 at 3:03
















  • The sex would also be a good distraction while they ate your soul, you would be less likely to notice something going wrong until too late.
    – Loren Pechtel
    Aug 11 at 3:03















The sex would also be a good distraction while they ate your soul, you would be less likely to notice something going wrong until too late.
– Loren Pechtel
Aug 11 at 3:03




The sex would also be a good distraction while they ate your soul, you would be less likely to notice something going wrong until too late.
– Loren Pechtel
Aug 11 at 3:03

















 

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