“The lower on energy she is, the hornier she gets”

Yup, that’s how you know this is an imposible irl kind of sexual fantasy.

Wouldn't that work as basic survival instinct? She uses semen to keep her energy up, so if her battery charge gets dangerously low, she applies predatory tactics of seeking fuel as soon as possible, by changing her attitude from flirty to outright slut like.
Just like humans.