The door opens

You thrust deeply into Eileen, your balls slapping against her with every stroke, one hand kneading her breast, pinching her nipple, driving yourself towards orgasm, indifferent to her pleasure. She groans and writhes beneath you mouthing futile and unmeant words of protest as she claws at you.

With one corner of your mind you're aware of a change in the room, and looking towards the door you see it opening, a figure entering the office.