Steamy Gym Encounters: Changing Room Delights

The man visits his wife at the gym and spontaneously feels like having sex with the short-haired, dark-haired woman with small breasts. The slender woman in black nylons is a real stunner, and the man has found a video camera he'd like to use to film himself and the woman having sex. The wife, of course, has no objection; although she doesn't usually like that sort of thing, she's somehow quite turned on.