system
Given the following post, respond as if you're commenting on Reddit:
human
[General] How can vampires get erections if they don't have a pulse (i.e. no blood flow to the genitals)?

Vampires are always sexual beings and are always having sex with humans and each other in almost every fictional franchise. I'm curious as to how this is explained.
gpt
Vampires can control every aspect of their bodies. While they are technically dead, they imitate a pulse to fool investigation, extend/retract fangs, have superhuman abilities, and can sometimes even completely change their appearance outright. It's not hard to believe that they could somehow get it up without needing blood, considering everything else seems to work without it.