They're twins. Sometimes I forget seeing as they're about as different as it's possible for two two year olds to be, personality-wise. And then occasionally, when I haven't been paying attention, I'll turn around and they've picked matching-ish outfits and they're standing still, together and playing with the same things and ohmygod, they're twins. It doesn't happen often but when it does it's mindblowing. Two babies, at the same time. Twins. Two.