I know that vampire bites could be very...erotic in most fictions, mostly due to proximity and intimate nature; more so with a human partner and it's heavily empathised but I'm wanting to understand the psychology behind how the mood can shift, more so between two vampires feeding.

In general reality, vampire bites aren't going to be pleasant for the human being eaten (unless said vampire released a neurotoxin into their veins for their pleasure and compliance). No one enjoys being stabbed with two or more needles in a sensitive spot of the skin and having their veins drained but that shit would hurt too.

I'm writing a book that has a new vampire that is part of a clan so they hunt in numbers to sate their blood lust. They're new to the whole thing, the culture of being in a clan, to how they hunt and how the clan would function. They're introduced to their new world as they go, including feeding and what comes after.

Human's aren't going to live but the vampires feed in close enough proximity to cause the vampires to get hostile with a more instinctive mindset to keep their food theirs than have it stolen by competition but close enough that that could easily change get to each other quickly for other 'needs'.

Now, It's possible that the sudden feed could spike the vampires up into an erratic state of emotions, would blood-lust turn into sexual-lust in a sort of feeding-afterglow or that feedings could trigger other equally erratic behaviours such as violence, and/or a flight/fight after feeding too. If feeding does this, what causes it?

  • 2
    $\begingroup$ Your world your choice, if you want it to it does, your asking us what physiological effects of vampirism you should specify in your story, question is opinion based voting to close. $\endgroup$
    – Pelinore
    Aug 7, 2020 at 21:25
  • $\begingroup$ I think your vampires had sexual sadism disorder? $\endgroup$
    – user6760
    Aug 8, 2020 at 0:58
  • $\begingroup$ I would have thought "drink a dose of hormonal teenagers ready to rub their stuff together" would have been a sufficient answer? $\endgroup$
    – Demigan
    Aug 8, 2020 at 7:33
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    $\begingroup$ I'd like to recommend "the rhesus chart" by Charles Stross for inspiration. $\endgroup$
    – RancidCrab
    Aug 10, 2020 at 13:37

5 Answers 5


This is actually complicated. So here is my own opinion.

First I will ignore magic. Though you do have vampires.

Second sexuality is really really complex. Why do we get turned on by the things we get turned on by? You can't explain every single detail with waving your hand and saying: BIOLOGY! or an evolutionary reasons we will find later. Obviously we can argue but the thing about intelligent life is that we truly transcend our biology in a way or in certain actions and so on. But anyway take of that what you will.

Anyway we humans have weird tastes. I'm no vampire and I find blood very erotic. People use and used pain to enhance their sexual experiences for a long time. All this is not exactly new. So being turned on by blood or feeding could actually be a fetish or a trait passed down from the mother/father/whatever vampire to the rest.

It could also be social in a loop of sorts. See. First vampire says it's hot. New vampires are not convinced but first vampire enforces it's hot. You grow up thinking that's hot. So it actually becomes hot. You can see this in many cultures who may think small feet or a large nose or whatever else is very erotic. So with time and as the later generations start practicing that thing it just becomes the norm. Culture controls a lot and with vampires in a clan I suppose the control of the main vampire is higher.

My favorite answer:

Feeding is not eating, it does not activate the eating circuits in the brain nor is it even close. Feeding is hunting, and feeding is domination.

This will take a darker turn but it's very close to what vampires are, at least the classical predator and night fiend.

You see much like how sex in prison is never about sex or that rape or sexual harassment is also never about sex. Or you can argue levels of that, but point is that in all these cases what you get is the domination of the other person and the person doing the thing just being drunk on a form of power lust.

So it's the same here. Your vampire consider, or it's wired in their biology whatever, that hunting and feeding is really about being a strong alpha predator that hunts the prey then have his/her/its will with the prey. It's domination so they get turned on by that. You can do whatever you want with that. Have their wiring all messing up so it is equally both, or whatever ratio.

This last point could also be used for many, but not all human. Some people prefer to be dominated and find pain quite erotic. Perhaps your vampire are actually more naturally inclined to hunt and and feed on those people. I mean it does fit the predator description well. You don't want a strong prey, you want the weakest of the heard as it will offer the least amount of resistance.

The experience is akin to religious or transformative ones. I'm still ignoring magic. But a quick look on certain religious practices you can find that pain becomes a sort of a pleasure of it's own in the context of cleansing the soul or appeasing god or whatever else.

Beating yourself or starving yourself or going through a sort of hellish torment or something similar are all things people did/do.

So maybe your vampires activate this sort of feeling in them or in their prey or both. A vampire feeding is seen as a part of their duty to the clan or god or whatever. And the humans are also, maybe, feeling like this will turn them into an eternal creature? Perhaps new vampires are those that survive or let survive from the feeding. This will mean a shared power or magic or bond or whatever connection between vampire and prey that both experience once their fang is in. It's like telepathy only using the fangs to have this vampire/prey connection. Not magic mind you. It's just using what is hard coded in the premise and expanding it.

Clan/magic/vampire limitation on feeding. So you know how a vampire can only enter if invited? Well. Maybe a vamp can only feed if invited to "have" the persons body. So the rules, whatever their origin, require the vampire to seduce the person in order to gain access to their body. Because you can't walk up to people and tell them you want to suck their blood. So the only way to feed was to seduce the prey and have it completely hand control of their body to you, thus removing the limitation and allowing feeding. Overtime you obviously see how the two are mixed in together. The vampire have to seduce the prey and so they are thinking of them sexually and the prey is thinking of having sex. Heck. Maybe feeding does not even hurt that much.

Lastly, sorry couldn't resist, MAGIC!


Well, humans already have what you can call a variation of that, since the act of eating already releases "feel good" or reward hormones, like dopamine, in the brain (and apparently it happens twice during the feeding process). Perhaps in addition to these hormones, the act of eating in your vampires could also cause the body to release hormones that affect sexual desire (like estrogen and testosterone) or that trigger a flight or fight response (like adrenaline) into the brain, resulting in the effects you desired. I couldn't find proper information on hormones which will suddenly cause a spike in aggressiveness, but it seems like higher concentrations of testosterone and low concentrations of serotonin could potentially help your vampires to be easier to aggravate (perhaps these hormonal concentrations could begin to be established once they begin feeding and tend to reach the "proper" levels shortly after they've finished eating, slowly returning to normal? Note however that I am not nearly well versed enough in the deeper effects of hormonal concentrations in humans and other animals to say such an event could happen with certainty or that these hormones could cause drastic behavioral changes within the time period we're referring to).


Vampire physiology

Vampire teeth are hollow. It is not generally known that, via a system of heart-like valves, the victim's blood does not enter stomach but goes directly into the vampire's bloodstream.

Of course a sudden influx of blood has to go somewhere and the vampire has various organs that can expand to accommodate it. One such organ is of course ...

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    $\begingroup$ "Arousal" is pretty much "influx of blood to sexual organ" by very definition. $\endgroup$ Aug 10, 2020 at 18:06
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    $\begingroup$ sigh, so vampires get blood boners $\endgroup$
    – Topcode
    Nov 11, 2020 at 20:12

Hormones. No, seriously.

The vampires don't need blood to live, they need blood because they're junkies. The vampires inject a venom that acts an anesthetic, but they have conscious control over it, so they can cause the bite to seem painless and even euphoric, or withold it and be as painful as it really is. As a result the victim's body responds in kind, releasing hormones in response to what it feels like. The vampire gets a kick from the hormones in the blood. Some like the dopamine released from a more apparently sensual feeding, others like the kick of adrenaline and hormones released due to fear, and so on.

If they get the hit they need, the vampires become euphoric, and can become oversexed as a result, just as some humans will after entering an altered brain state.

The vampires, however, don't realize that they're addicts. They think they need the blood to survive.


You're speaking of Non-humans using clearly human characteristics. Foods can be sensuous, but not sensual ( in most 'normal'types). I don't believe you can guage a fictional psychology against a non-fictional one. Perhaps instead of arousal (useless in the 'un-dead') they would crave sleep, or sports, or backgammon. The choice is yours in a world that is entirely your fantasy.

  • Just my $0.02
  • 1
    $\begingroup$ "choice is yours in a world that is entirely your fantasy" the crux of the matter, OP is asking for opinions. $\endgroup$
    – Pelinore
    Aug 7, 2020 at 21:23
  • $\begingroup$ Vampires were once human. It's evolution really and logical to assume that some traits and baser instincts remain part of the package, even in a new state. I'm trying to find a little more of a reality-check for the psychology that'd made a state the vampires fall into something more believable for the readers. using 'choice is yours that is entirely your fantasy' is not helpful in any shape or form as an answer. @Pelinore $\endgroup$
    – SKKennell
    Aug 7, 2020 at 21:45
  • $\begingroup$ @SKKennell Of course it is but which ones & how are entirely within your purview, you're asking for opinions, as formulated your question is entirely opinion based & should be closed. $\endgroup$
    – Pelinore
    Aug 7, 2020 at 23:32
  • $\begingroup$ @Pelinore Then perhaps the question ought to be closed as primarily opinion based I do not have enough rep on this site to cast a supporting vote, unfortunately. $\endgroup$ Aug 8, 2020 at 0:54
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    $\begingroup$ @KorvinStarmast Don't get me wrong, it's a perfectly plausible & good idea the OP has here, that the change to Vampire rewires all the human pleasure drives into a lust for blood & they can actually get a stiffy as a result, I just don't see a non opinion based question in it. $\endgroup$
    – Pelinore
    Aug 8, 2020 at 13:31

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