In the dimly lit room, Mark lies on his back, legs spread, as Kelly teases him with her strap-on. She runs the smooth head along his taint, pressing gently against his pucker. Mark winces, then relaxes as Kelly leans down, whispering encouragement. She eases in, inch by inch, until Mark's ass swallows her whole. She begins to thrust, slowly at first, then building speed as Mark's moans fill the room. Kelly's eyes gleam with dominance, her pussy throbbing in sync with Mark's ass.