It's an genderswap prompt, and I'm leaning toward always-a-girl rather than random magical genderswap. Are you sure you want to be bugged? Or, you know, I could bug you with other fic-related things.

Like... after Brendon and Spencer take Bogart to the vet (awkward), they go home, and Brendon stays inside while Spencer goes back out to the deck to finish the weatherproofing. And he's got everything under control until he realizes he's sort of painted/sealed himself into a corner. He works around his feet, stepping carefully, thinking that it's not like it's going to seal THAT fast, but it does, so he ends up having to untie his Nikes and climb off the deck, and go around to the front door to get back inside.