From the mouth of babes...
Halleigh came in while I was getting Beau dressed after his bath last night and after surveying the scene said, "Mom, is that part of Beau's bottom?" I said, "Yes, sort of..." and before I could get anymore explaination of anatomy out, she exclaimed, "Beau's bottom is disgusting," and walked out of the room. I called after, "It's not disgusting, it's just different." Maybe she caught that last part... probably not.
HAHAHAHAHAHAHAHAHA. So funny.