Getting on the rock to dry out was definitely the best idea he's had in a while. Finn glances around at the rock with a critical eye - okay, that would work without risk of serious injury. Well, undue risk, anyway. It's an acceptable amount of risk. Finn nods.

"Yeah. And I'll do you too? It's only fair." Even just picturing the expression Poe's face might get is a turn-on, and it'll mean they can wait till later to go all out because they'll satisfy each other now.