In the dimly lit room, the rhythmic sound of fingers sliding in and out of a wet pussy accompanies the soft hum of the office machinery left running overnight. The woman, her legs spread wide, leans back in her chair, her body tensing as she approaches climax. She bites her lip, suppressing a moan as she comes, her body shaking with pleasure. As she catches her breath, she looks around the office, a satisfied smirk on her face, knowing she's left her mark on the sterile environment.