OK So I haven't read all of the replies just yet. I just want to say that I feel the more you deny it the more it is likely to happen without your knowledge. I would rather know where and with whome my daughter was with.

Have this boy over, he may even be nice. He may have her best interests at heart too. (you never know) Atleast by them being at your house together you can keep an eye on things. Your daughter sounds like a smart girl with her head screwed on right. She doesn't sound like she's in any sort of hurry to loose her virginity which is awesome too.

I was 15 when I met my first boyfriend, he was 20. We met when I was on work experience. He was a nice guy, still is. He never pressured me into having sex or anything else with him. Of course we did eventually do it but it was very much consential too. We went out for quite some time too, until I decided I wanted to explore other avenues

This guy also had his own plave out the back of his parents and yes we were free to do whatever out there (he was an adult afterall) but it sure wasn't abused either.

I think what it comes down to is trusting and believing in your daughter. Believe that she will make the right decisions. Let her know that it is ok to say no if she feels uncomfortable at anytime in their relationship. And always have daddy as back up. It's so hard to see your kiddies - you baby, growing up, isn't it.