Convo between my 7year-old students today

Josie: I have a new crusshhhhh
Matt: Me too! On a boy!
Pearl: You're a boy with a crush on a boy?
Matt: Yeah he's really cute.
Pearl: Oh.
(pause for a bit)
Matt: Boys can like boys. I just can't marry him because boys can't marry boys.
Me: Yeah they can. You can marry whoever you want.
Matt: Really?
Josie: YEAH my tia has a wife so now I have a titi and a auntie.
Matt: Okay. Then maybe I'll marry him.
Dave: (from across the room) No you can't you're seven.
(Age was apparently the only foreseeable problem anyone of my elementary schoolers could see with gay marriage.)