Victor Pelevin. Empire V (№ 218424)

And I have another question, ' I said. - About point four. Why vampire bites a woman to have sex? From chivalry?
- Yes, but not only, ' replied Loki. Mainly because after a few bites, there is a complete disinterest in women as object of desire. This is a proven observation. In any case, no exception to the rule, I do not know...
He folded his arms and stared into the distance, as if remembering something forgotten.
On the contrary, he said, - if the desire for the woman becomes unbearable, the vampire bites her a lot of time to examine her soul and be cured. This helps always. But if the vampire has other plans, he won't do that...