Now for some exercise

As you stand in the middle of the gym, staring at the floor and hiding your cock behind your hands, Coach Preda looks you up and down, carefully assessing your undressed body. "Not in bad shape," she says. "But we can always do better. What do you think, girls? Could John use some exercise?"

"He looks fine to me!" Tammy shouts, to laughter from the girls. The coach allows herself a smile. "Well, even a healthy body needs to keep active," she says. "And that goes for you ladies, too. So let's line up on the gym mats and start working out. You'll find ropes in the bag over there."

"Um... ropes?"

"Jumping rope for fifteen to twenty minutes every day is an excellent way to stay in shape."

"But... I mean, I can't..."

"Stand right there, John. Yes, facing the girls."

No use pleading for mercy. She's the teacher, and she's made up her mind. There's absolutely nothing you can do. Glumly, you shuffle over to take your position on the mat. Your body prickles with the scorching heat of twenty intense female stares, sweeping over your skin like searchlights, looking for the smallest sign of weakness. Grace ogles your abs. Chloe inspects your shoulders. Tammy checks out your legs. Ashley watches your blushing face, grinning like a crocodile as she savours every last drop of your misery. She knows what you're about to show her. What you're about to show everyone.

Coach Preda holds out a jump rope.

"Go on, John," she says. "Take it."

"But, coach, I..."

"Now."

Reflexively, you clutch your hands more tightly to your body and take another despairing peek at the girls. Maybe at least Shannon will show you the mercy of turning away? No. Not a chance. She's right there with the rest of them, green eyes wide, trembling with anticipation.

You take a deep breath.

You reach out and take the jump rope.

They give you a round of applause, with wolf-whistles and cheers, as you stand in front of them with one end of the rope in each hand and your cock on display, sticking out in front of you like a signpost declaring your shame to the world. You're still hard, of course. You've never been this hard in your entire life. Coach Preda sighs.

"John," she says. "I told you to get rid of that erection."

"...sorry, coach."

"Don't apologise to me. Apologise to them. These are innocent young women you're exposing yourself to. Are you proud of yourself? Letting all the girls see that you're intensely sexually aroused?"

"...no, coach."

"How do you feel, John?"

"...I'm ashamed of myself, coach."

"Good. You should be. Now apologise to Ashley."

"...what?"

"Look at her. She's scandalised. I need you to look her right in the eye and say you're sorry for being such a dirty little boy."

"...Ashley, I'm... I'm sorry for being such a dirty little boy."

"Good," Coach Preda says, while Ashley tries not to fall over from laughing too much. Some of the girls are in hysterics. Others are too focused on your penis to pay attention to the dialogue. Shannon, in particular, is staring avidly at your cock, her lips wet, her pretty face rapt with fascination, like she's trying to memorise every last detail. Awkwardly, the attention just seems to be making you even harder. And all you can do is stand there, the centre of attention, mercilessly ogled by the girls, your state of arousal on full public display. It's by far the single most humiliating moment of your life, and it's only going to get worse.

The coach slaps your ass, making you jump. The girls giggle as they watch your cock bounce.

"Right," she says. "Now you get to spend twenty minutes jumping rope."