You escape the heat and noise of the party, slipping away to the dark coolness of the back deck. Lights across the lake twinkle on the still water. The moon is full and bright.
You sneak a forbidden cigarette. I slip up noiselessly behind you and wrap my arm around your waist, my hips pinning yours to the railing. I'm already semi-hard.
I set my drink on the railing, pull your cigarette away and take a drag myself. I replace the cigarette with my left thumb, sliding it against the teeth in your mouth.
You swirl your tongue around my thumb and begin to suck.
I reach down with my right hand between us and lift your skirt, slide my hand up between your thighs, up into the crack of your ass.
Your panties are already wet. I force them aside and slip my middle finger up into you.
Your breath catches. Then you suck harder at my left thumb.
I'm gentle at first, slowly curling my finger up and in, as if I'm beckoning you. Then faster. More violent. I curl my bicep and lift your entire body off your feet. You hang, ass up, slowly rolling your hips, grinding against my hand, until you're fighting to stand on your tiptoes in your high heels.