Love to know what rules you use... My DD, aged 14, went to first mixed sleepover last night... I trust her, she's pretty sensible, best friend there but was a little nervous (especially as one of them was "her boyfriend"). I almost didnt but with wiser mates' words echoing in my head, I texted the mum, thanked her and said how much DD was looking forward to it. Only to find out that she was out of town and no adults in the house ... and DS had been forbidden to have anyone over. All sorted without drama, they went to another house where the parents WERE home.... But did make me think I need to start being clearer about rules etc... What do you have in place for your DS and DD in their teens?