This isn’t all that random, I’ve had far more random questions than this! 

^So much love for Brad that as miserable as he may have been WAS, this was perfect, capturing that kind of orgasmic quality while being fed on ❤ 

In the vampire chronicles mythos, are there any benefits/positive reinforcements for humans that are fed on? 

Not sure what “benefits/positive reinforcements for humans that are fed on” means… but I do get the impression that it’s a deeply intimate act, that the vampire doing the feeding is doing their best to keep their victim calm and complacent, ecstasy is a pretty good state to shoot for and that would be beneficial? I mean, if the vampire’s intent is to finish off their victim then there’s no real benefit for the human, lol, but if not an intent to kill, ecstasy is a pretty positive reinforcement! There is some fanon that the vampire can make it a really painful and negative experience if they want to, with the speed that they draw the blood, etc. 

I know the vampire itself experiences a sort of euphoria when feeding, but is this also true for the human?

I don’t have my books w/ me either, but I distinctly remember the ecstasy they describe experiencing when they’re being fed on as mortals. Daniel goes into a state of being almost addicted to the feeling (and to the drops of blood Armand gives him in measured amounts).

This is intensified when they’re being given the Dark Gift, the part when they’re almost completely drained. It’s an immersive sensory experience for both the vampire and the mortal.

There’s fanon that a mortal does experience certain physical enhancement in their senses from drinking vampire blood, but just being fed on would probably not enhance them, as Louis dragged his sorry butt back to Pointe du Lac after Lestat fed on him the first night. He seemed pretty bent out of shape.