To chat to me. DD wants to go on a mixed sex sleepover there. I want to chat to them first to reassure myself that girls and boys will sleep separate.
DD is 15, her boyfriend is 14.
I'm nervous! 
God knows why, I'm a grown-up now FGS, ish, but it feels like meeting my OWN boyfriend's parents for the first time!
DD is my eldest, and I had her when I was just 16, so this is all new territory for me.
Thankfully DD is very open with me, and chats to me about anything, so I know she's currently 'ok' IYKWIM.
Aaarrgghh!