Dear Sarah,

It's a matter of degree.

A little role-playing every once in a while is not a bad thing. If, on the other hand, he needed you to dress up like a little girl every time you have sex, that would be time to break up with him.

You said that you don't know if he still "wants little girls" or "checks out little girls." That's absolutely right – you don't know. Don't assume that he is actually turned on by little girls. He may just be indulging in a little fantasy.

Ask Him

Not that he is, but how many pedophiles would say "Yeah, I'm turned on by little girls" to their girlfriend?

The best way to figure it out is to ask him directly. If it's making you uncomfortable, you need to discuss it with him – he can't read your mind.

If it turns out that he is actually turned on by girls who are too young, you need to steer him toward therapy ASAP. And you should not feel any duty to stay with him.

Don't Treat Him Like He's "The One"

The bottom line is that you're 18, and you're already thinking about your future children with him. Slow down a little! You still have a lot of growing and changing to do emotionally. You don't need to treat this relationship like it's "The One."

–