Coming from a guy who hosts pubescent girl slumber parties:
"I have a 16 year old German foriegn exchange student staying with me. She has two other girls (both German foriegn exchange students) who are her good friends. For whatever reason, my house is the hip place to hang out so every weekend I have all three of them for a weekend long slumber party. They laugh... giggle... eat pizza... "
Talk about the kettle calling the pot black!