Melanie's eyes widen as Jack's massive cock springs free, her first-time nerves evident. He commands her to touch his throbbing shaft, guiding her inexperienced hand. She tentatively strokes, her small hand barely fitting around his girth. He then orders her to mount him, her wet, tight pussy slowly enveloping his cock. She gasps, feeling every inch as he fills her. Jack dominates, thrusting hard, making her take every inch. They're both aware they could be caught, adding to the thrill. Melanie's moans echo through the office as she's fucked hard, her body responding despite her initial reluctance, her pussy dripping with lubrication.