Hillarious... My girlfriend and I came home to a bunch of 16 year olds sprawled out on the sofas in their underpants eating cookies, raiding everything in the 'fridge, and watching chick flicks in the dark.
I told them they could stay up as late as they wanted then went to bed early. I think they stayed up till about 5:00am.
Then, I made them breakfast in the morning. They got up a little after 10:00am... and cranked the sterio as soon as their eyes were open. They were a total giggle box laugh factory all morning. They never stopped laughing.
My girlfriend thought they were hillarious. She said, "Well, at least they all feel really comfortable here."