"Turn around," you croak.
Nayeon obligingly changes position into a reverse cowgirl, twisting herself around without lifting herself off your throbbing member. Your dick is now nestled between her firm, round buttocks.
She resumes her rocking motion and you grab her hips as she slides her slippery ass up and down your cock. You can't see directly, but she's definitely fingering herself at the same time.
"Ohhh..." she moans softly, increasing the speed of her rocking. She's really getting into it now. The sight of Nayeon's gorgeous ass bumping and grinding against you causes you to become dizzy with lust.
(32) Continue like this
(31) Slip it into her