After they fuck, Finn always pats Poe's head teasingly and says something snarky/cute. Poe usually responds in kind, but after a while he comes to crave Finn giving him a pat on the head after sex, and after everything else (ex; Poe says something funny/clever in a meeting and Finn just reaches over to pat his head, oblivious to how strange it must look to everyone around them) I just want teasing!Finn and unimpressed at first but eventually getting really into it!Poe