Next period

After Greg finished satisfying himself, he walked down the hall to his next class, which was about one-third over by now. The door creaked open slowly as he twisted the knob and attempted to make a subtle entry.
"Ah, Mr. Anderton. Decided to show up, have we?" Mr. Hollingsworth commented. "Late slip?"

"Oh, I was with Miss Abernathy, discussing my test. I forgot to get a late slip."

"I hate to waste your time with such formalities, but I have to ask you to go get a slip from Miss Abernathy."

"All right," Greg said as he walked down the hall to Miss Abernathy's class.

"Yes, Greg?" She asked, peering up from her paperwork at her desk.

"Sorry, Miss, I forgot to get a late pass from you."

"My, the period's nearly halfway over. Did your teacher just send you here?"

"Yes."

"You mean to tell me he didn't send you back til just now? No, that can't be right. You must have cut some of his class, right? The time you spent cutting, was it to relieve yourself of that throbbing erection I gave you? Answer truthfully."

Greg stammered, "Y-y-yes, it was." There was no point in hiding what she already knew. He just wanted to get the pass.

"Tsk tsk. What have I told you about self-control, Mr. Anderton? There'll come a day when you can't pleasure yourself every time you see an attractive woman. And I don't think pleasuring yourself is a good excuse for missing class, either. I can't just give you a late pass and write on it: "Young Greg missed part of your class because he couldn't control his urges and felt it necessary to pleasure himself. Could I?"

"No..."

"I think I need to teach you a lesson in self-control. If you pass this test, I'll give you the pass in recognition of your lesson learned. If you fail, I'm afraid I won't be able to give you the pass. Is that clear?"

"Yes, Miss Abernathy."

"Good. Now, I want you to sit down on the desk..." and he did so, "and I am going to place my hand on your genitals. I want you to remain still and your penis to remains soft. If I feel any sign of erection--"

"Miss Abernathy, that's imposs--"

"Excuse me, no interruptions Mr. Anderton!"

"I'm sorry, but it's impossible, I can't stay soft--"

"I don't want to hear it Mr. Anderton. Now, if I feel any sign of erection before ten seconds are up, I will know that you continue to exhibit a lack of self-control. The timer shall begin in three, two, one..."

She placed her hand on Greg's crotch, completely covering his cock. Her hand sent a shiver down his spine and caused his cock, soft from masturbation, to tingle with with pleasure. The fact that he came only a couple of minutes ago was the only thing that kept his dick from springing up instantaneously. After two seconds, Miss Abernathy tightened her grip slightly. Greg attempted to **** all thoughts of sex out of his mind and relaxing his kegel muscles as much as possible. Seven seconds leftand he was still soft, but each second was eternity. Miss Abernathy found the head of his flaccid penis and pinched it. This wasn't fair! The sudden movement and pressure on the most sensitive part of his member caused him to shiver again as he felt blood rush to the base of his dick. He tried to hold back as best he could, but it was no use. At first, his dick only grew slightly, but the fact that it had begun to get hard had aroused Greg to the point that he couldn't hold back and stay relaxed. His hardening member grew longer and pressed harder against Miss Abernathy's hand, arousing him even more. In a couple of seconds, his dick had become almost entirely erect, pulsing in her grip.

"Well, as I expected, you did become erect again. I fear you haven't learned to control your urges, so you'll just have to face the consequences. See you in class tomorrow, Mr. Anderton. Now, off with you."

As she uttered her last words, she gave his cock one last squeeze, which made him jump up. Greg turned toward the door and adjusted his rod to better disguise his erection, the purpose of his jerk session defeated.

He returned to Mr. Hollingsworth's class empty-handed and utterly aroused.

"Did you get the pass, Greg?"

"No, I --"

"I'm sorry, Greg, I'm going to have to give you a detention slip. Purely procedural, I assure you. I know you're a good kid, but I can't be unfair to everyone else, you know."

"Yes, Mister Hollingsworth."