They haven't been babies in a few years, but my brother has twins and another girl.
My niece (the girl twin) is, I'm convinced, Satan's Spawn. I love her and all, but holy crap...
My nephew (boy twin) is the most well behaved kid I know. Though he listens to his sister way to often.
My other niece barely says a word and is really shy.
Wouldn't trade them for the world. Really bums me out that I had to move to alaska. I only get to see them once a year
