TURNING 15.......Birthday Party Ideas, Plz?

So I`m turning 15 on Saturday, and I need ideas for my party.

I`ve got more than 20 people (boys and girls) coming over, but i`ve got a small house, it`s cold outside, and I have a boyfriend (he`s coming).

Anyway, are there any games or something anyone can suggest? I don`t think make-out games will fly (my mum`ll bve there too) but I also really don`t mind corny games. :)
Posted by M; updated 10/24/06