Trait: Killing Sex
This character has sex while he is killing someone. For this trait to apply the other sexual partecipant should be alive at the beginning of the sexual scene and dead by the end by this character's doing.
When NOT to apply this trait:
1) When this character is having sex with an already dead body, just use the trait Necrophilia.
2) When this character attempts to kill his sexual partner but in the end he doesn't succeeds in doing so.
3) When this character's sexual partner is already dying or dies because of someone else's doing.
NSFW Example (Oni draining life energy by sexual intercourse)
Black Widow Sex