Freeze in horror

Penny couldn't even answer. The world felt a bit unreal, and her mouth didn't want to form words.

She held Isidro's questioning gaze for several seconds. He looked impatient, but also interested. He really seemed like he would take Penny over Tammy.

But Penny slowly, slowly shook her head.

No.

She just couldn't do it.

The teacher wasn't laughing any more. Penny didn't look back to see if she was sympathetic. Penny stood perfectly still, breathing carefully through her nose as a pain built up in her gut and she tried not to cry.

Alma returned to "her" students, where she and Rhonda guided Big J and Tamira to start feeling up one boy each.

Tammy, meanwhile, wasn't so gentle. She put one hand up Isidro's shirt and the other on his cock. He exhaled sharply and turned his full attention back to her ample breasts and swollen pink nipples. She gave him a little bounce.

"There's your answer. Now would you like some tutoring to catch up with the rest of the class, or have you studied this subject before?" She gave a playful wink with the word "studied."

"I, well... I could use some pointers." He must have been pretty nervous, because he finally looked away from the very eager 18-year-old who was rubbing against him.

Tammy stripped off her shorts and panties. She had no hair anywhere and an ass that was probably more perfect than any phone app could guess.

"Sure, relax, we're cool here. Get those clothes off so we can feel each other right."

The other girls still had shorts and skirts on, and they were practicing kissing with the naked boys. Isidro looked to them and hesitated, but then he stripped down with no obvious awkwardness.

This can't be happening!

But it was. Tammy guided Isidro's hand between her legs and started talking about "vaginal lubrication" while rubbing her tits against his chest. This distracted the kissers a bit, but after listening to Tammy the boys moved to strip their partners.

Big J got nervous and backed off. Alma said some kind words, and Rhonda replaced Big J as a boy's fingering practice.

Big J walked over to the group of watchers. "Shit she smooth, I'm battin' the wrong fuckin' league." She got dressed, but continued to watch.