Their Genitals

With the red light hitting her crotch and the blue hitting his, Pat laughs as a bulge pops up in her skirt and his shorts go flat. Pat's laughing dies down and he hears her sternly say "Listen, my junk is pressing hard against the cage and everyone can see it. Please take it off." Pat thinks for a second and undoes his last swap and before the couple is out of sight, he swaps their positions in the relationship. As they round the corner he chuckles as she laughs off his nervousness, possibly about whatever they had going on under their clothes.

A few moments later, nobody else is walking by. "I better get to bed." Pat says, still nude, sliding between the sheets. He stops with a knock at the door.