Talk:Queen Slime/@comment-71.100.124.193-20150106200343/@comment-26188819-20150330061958

Granted this information is on another monster girl, but the Succubus page clearly states that a succubus has sex with men to gather spirit energy, after that IF a man strikes her fancy, she takes him home. That seems to be a very clear case that Succubi at least (And therefore probably others) have sex without it automatically becoming a filial union. That said, once they DO find their husbands, THEN they don't want anyone else.

Also, I agree with Kuruni, the girls aren't mindless (Except a few that work on instinct I suppose) so I would imagine, like he said, they would work at improving their men to suit their tastes a bit better as well. Of course since they are individuals with their own personalities even within species, some would probably work harder at it than others.