He can't keep his hands off your ass. He's palming it and groping it and kneading it. You find it almost endearing, so you ask him almost teasingly if he wants you to turn around. His answer is quick, almost as if he's been waiting for it for so long.
You do so, making sure to put his ass right into his lap. You grind your hips and put your hands on his knees to give yourself some stability as his hands grope your inner thighs. The harder you grind, the more you can feel his bulge poking you through his pants, so you almost greedily continue.
His hand starts to palm you until you realize with some surprise that your bulge is already out and curling around his fingers. You also realize that he is breathing hard, using his one hand to push you forward so he can get a better view of your ass as he grinds with you. Your teeth bite at your lip as you continue, leaning as far forward as you can while grinding on his lap.
His rings press against your bulge and you mewl, wanting him to press his fingers into your nook, even though you know he won't. You pant and grind down harder on him, your hips bucking a bit into his hand before you startle from a violent stinging on your ass.
You whimper and grind your hips again, just to earn another harsh smack on the other cheek. He keeps it up every time you grind your hips firmly over his bulge until you both are violet and panting and your hips are spasming.
You grind erratically on him, begging him for more, you need more so badly. Your bulge lashes and you grind needily on his lap, a strangled mewl breaking out as he snatches a handful of hair and forces you up so you can sit firmly on your tender ass.
"You like that, don't you? You're sopping wwet for me, ain't ya? Noww do a favvor for me an stick that pretty little ass in the air so I can finish up wwith you…"