Shannon keeps "accidentally" touching your crotch during stretches

You and Shannon are doing sit-ups right now, but every time Shannon sits up, she bashes her face into your boxer-clad penis. It feels good; it makes your cock harder. More importantly, it's making her giggle like crazy as she keeps hitting herself against your hard-on, grinning at you and shaking her head.

Coach Preda notices what is going on, angrily stomping over and pulling you back by the waistband of your boxers. "John! I am trying to punish you, but here you are, rubbing your cock in your gym partner's face? How dare you! Are you trying to humiliate her? Do you want her to cry? Is that the kind of boy you are?"

"No," you mumble quietly in protest, feeling embarrassed to have gotten called out like this. It's one thing to be almost naked in front of a class full of girls and quite another to be caught with your cock out by your gym teacher!

Shannon tries to control the situation. "It's okay Coach, I was... Uh..." She wilts, though, being unable to meet Coach Preda's gaze directly.

The coach sighs in exasperation. "You don't need to defend your friend, Shannon." She turns to you. "Do you understand me?"

You nod quickly and pleadingly, hoping that things will go back to normal, as if you haven't just had half your junk exposed in front of twenty girls!

"Yes Miss Coach," you respond quickly, "but it was an accident..."

Coach Preda gives you a withering look. "Well, that's not how it looked," she responds coldly. "Now get over here and let me give you a little lesson."