Naked face-sitting

She grabs your boxers roughly and pulls them right down to the floor.

You gasp, suddenly aware of the cool air touching your most private parts, as well as the eyes of the girls on your body. Shannon gasps too and covers her mouth with both hands. Even the girls who had been cheering earlier are silent and staring at you now as your penis springs up and hits full mast, jutting forward proudly. It's big and thick and red, and you can see a thin strand of pre-cum oozing out over its tip. It looks bigger than it did only moments ago, when it was inside your shorts. In fact...

"Holy shit!" Tammy shouts, as your erect penis catches her eye. She points at it with a shocked voice, and starts laughing loudly. All the other girls start laughing too, and the sound echoes around the gym, ringing through the walls.

You're mortified by their reaction, and embarrassed to be naked in front of them all. Your face goes bright red with embarrassment.

The classes' eyes suddenly turn away from you, though. As you turn to look at Coach Preda, you notice that she has dropped her own sweatpants. Her legs are only covered by black panties. Her ass is humongous and well toned, with a golden tan that cut off at the crotch.

"Since Mr. Doe thinks it's okay to rub his junk in people's faces, I might as well return the favor. Lie on the ground," she commands in that cold voice of hers, pointing down towards the center of the gym. "And spread your legs."