Originally Posted by Libertine

It seems a bit... pointless. You could just have let her spend the night, and have them sleep in separate rooms.

At that age, if they're gonna have sex with each other, they'll do it regardless of an opportunity like this one. Being around to make sure things don't get out of hand is always a good thing. And meeting your son's girlfriend and having a chat with her helps, too.

More important, though, is having "the uncomfortable talk" - the one in which you don't just explain to your son the dangers of unsafe sex, but also the reasons why it's important to take things slowly and wait until he's a bit older.