Talk:Monster Girls/@comment-35121916-20180327100242/@comment-29325824-20180327175259

Again, it's complicated. But Mamono are said to be able to sense of a man's fetishes or phobia's are compatible with them or not. So if it's not, they'll likely not attack him.

Likewise, if they do attack a man, and he still doesn't want them even after the sex, they'll often let him go.

But, as LorialetDreamer said, a lot of docile (and even other) Mamono can choose to be virgins until they find their one and only husbands. It's just almost only guaranteed when it's a Unicorn.