I expect them, and several others, back at the house sometime after midnight to continue the adventure of prom night. I'm glad that they want to be at home. They may not get any sleep, but I will because I won't have to worry about them! That is a great Mother's Day gift.
My dad had one piece of advice when I told him about the gathering of teenagers here - lock up the pantry!
While the kids were dancing the night away, Weber and I went to the grocery store. There should be enough food to keep them full from the midnight munchies time through to brunch tomorrow morning.