Hi bri1394 - I'm quite a bit older than you, but I have a 15 yr old and an 11 yr .....know that times are changing. Please don't do anything with this guy, considering you hardly know him. If you like him, you shouldn't have to proof it, by doing something sexual.
I've also heard of many rapes happening at parties, especially when there's too much alcohol consumed. Get to know this guy well and be sure the feelings are returned. You don't want to feel used after. Sorry if this sounds motherly, but I'm all for empowering young women and fostering strong self esteem. Be safe.