In looks, mostly. And somewhat how he sounds. And I should specify that it's the OtherDad before he gets all floppy and such. Like when he's playing the piano. It's not a bad thing, really.

Dude, when he laughed and was all, "I like the baby!" I kind of fell a little bit in love with him. Oh and at dinner, when he made the comment about always having a job when I was talking about being sick and feeling like I was dying, before I knew he was a doctor... made of LOL! Seriously, your folks are made of awesome.