"All right. All right, I got it." His voice has a touch of what Poe would probably recognize as--not false bravado, but the kind of talking to himself Finn does when he's trying to convince himself, rather than anyone else.

His hands aren't hesitant, mimicking Poe's gesture to warm the lube up first and then probing his asshole. No such thing as too much means he takes his time, but doing so does help Finn with the talking-himself-into-it part so that when he's ready to slide his cock in--and slide it does, slick and tight and exactly what he's been wanting for what seems like forever--there's no hesitation at all, just groaning and closing his eyes for a second. "Damn, Poe!"