He let out a small grunt as Poe pushed down, and this was good. This was unknown mission accomplished, but...Mm. Not an optimal angle. His brow furrowed slightly, his full participation in the deepened kiss momentarily pausing as he slipped the hand on Poe's arm down- thank the Force for that towel, Finn isn't sure if he'd be able to handle grabbing the man's bare ass- and shifted to accommodate Poe on his lap rather than just leaning down-

And he hissed a curse as Operation Comfortable Kiss suddenly and sharply abolished Mission Hide Certain Reactions from Poe. A mission failure speed along by his involuntary press upwards into that pressure.

"I didn't-"

Know where he was going with that. Mean to do that? Know this was going to happen? He had no clue, so he left the words hanging there as he tilted his head to better accommodate Poe's actions.