After Biff left the washroom, he started heading back to class. He figured he would wait until the bell and then make Karyn undo whatever she had done. He was nearly back to the classroom when he saw Miss Mellis in the hallway. She was his French teacher - although Biff struggled enough with his first language, Miss Mellis was fairly young, and the hottest teacher in the school. Dozens of jocks like Biff took French class simply to watch the big-breasted, round-assed Miss Mellis walk around the classroom asking them incomprehensible questions.
Miss Mellis said, "Oh, Biff, I've been looking for you!" and hurried up to him. She reached out and touched his arm, and Biff didn't think of pulling away until he felt a familiar tingling in his chest. He slouched slightly, hoping that his breasts weren't too noticeable yet, and looked at Miss Mellis.
"You missed your French test last week, and I was hoping you could complete it at the lunch break today. Are you ready to write it?" she asked.
Biff mumbled, "Sure, Miss Mellis," and hurried back to the washroom to check his chest in the mirror.
In the washroom, Biff looked at himself critically. When he stood up straight, his smallish breasts were clearly visible under his t-shirt. When he slouched, the shirt still hid them fairly well. Biff realized that he was going to have to avoid contact with girls until he sorted things out with Karyn.
Then, gingerly, Biff lifted his shirt up. Two breasts stood proudly on his chest, the nipples and aureoles larger than he was used to seeing on his own body. He reached up and touched one; it was sensitive, but not much more than his nipple used to be. He fondled the breast gently. It was firm, but soft, and it felt nice to touch. Biff shuddered when he realized that he was getting turned on by his own bitch tits.
Biff pulled his shirt down, and headed to his locker. He decided that he had better wear his varsity jacket for the rest of the day, just to be safe. He pulled on the red and white leather jacket, and went back to the washroom to make sure that he was covered. Sure enough, the thick material of the jacket made his breasts totally unnoticeable.
By the time Biff made it back to his classroom, the bell had rung and Karyn was already gone. Biff had to grab his stuff for his next class, and he was slowed down further by his stupid teacher giving him grief for missing most of the class to go to the washroom. Apparently Karyn said she hadn't seen him in the halls, so the teacher figured Biff had been goofing off.
Biff rushed to his next class, which was Math. Good, he thought, a class where I can sit and take notes, and I don't have to touch anyone.
Math class started fairly uneventfully, except for one time when Tyrone, who sat next to Biff, tried to tap him on the shoulder. Biff noticed in time to dodge out of the way, and said "Don't touch me!" gruffly to the confused Tyrone.
About ten minutes before the bell, Mr. Morrow, the math teacher, was walking around checking the students' work. He touched Biff on the shoulder, and Biff felt the lightning shock to his groin again. His cock stiffened almost immediately, and Biff shifted in his seat to hide the small tent it made in his pants. The problem wasn't as noticeable as Biff thought it was, due to his reduced size in that department, but he still felt very self-conscious about it.
Worse, Mr. Morrow wasn't happy about some of the careless mistakes Biff had made. He started trying to help Biff to correct his errors. Biff really didn't care about the stupid math problems right now, which is why he hadn't bothered to do them carefully in the first place. When he tried to explain this to Mr. Morrow, the teacher simply got annoyed, as though math was the most important thing in an 18-year old football star's life. Biff sighed, and tried to get permission to go to the bathroom, but Mr. Morrow wouldn't let him go. He insisted that Biff stay until he corrected his mistakes.
Biff sighed again, and tried to fix the problems. He didn't enjoy math at the best of times, and the urge to jerk off kept getting stronger and stronger, making it really hard to concentrate. Biff tried surreptitiously stroking his cock through his pocket, but then noticed Tyrone looking at him funny, and he had to stop.
Biff tried to get permission to leave again, but Mr. Morrow had a bug up his ass or something, and refused to let Biff leave. Normally Biff would have just gone anyway, but the football coach was giving him a hard time about his grades already, and he knew that Morrow would go and complain if Biff was openly defiant. That could mean getting suspended from the football team, and Biff wasn't willing to risk that.
Biff started to worry. What time had Mr. Morrow touched him? So far the things Karyn had said had come true... he was worried about what would happen if he jerked off, but he was even more worried about what might happen if he didn't. Did he have time to make it to the washroom after the bell? Maybe he should just claim to be sick and go home... but no, that wouldn't give him a chance to get Karyn to fix this bullshit curse or whatever it was that she had done to him.
Biff's question was answered shortly. Just as the bell rang, Biff felt his cock spasm with a powerful orgasm. His whole body jerked, and a couple of kids nearby looked at him, but he managed to hold back a moan that very nearly erupted from his mouth.
Biff grabbed his books, holding them over his crotch, and raced for the washroom. He accidentally slammed into that nerdy Jon kid in the hallway, and felt another lightning bolt race through his groin. Biff ran the rest of the way to the washroom, somehow managing to avoid hitting anyone else in the press of the hallway, and flew into the toilet stall.
He pulled down his pants, and found a sticky mess in his pants and on his cock. It was still rock hard, but it was ridiculously tiny. It stood out proudly, less than an inch long, with proportionally tiny nuts tucked underneath in a scrotum the size of a large marble. Jizz dribbled down the inside of his pants, with no underwear to catch it, and he quickly tried to mop it up with toilet paper before it soaked through his jeans. Then he started to wipe his miniscule cock clean.
Rubbing his tiny member felt really good, far better than he was used to. Without thinking, almost uncontrollably, Biff began stroking the tiny dick with his finger and thumb. He came in under a minute, nearly falling off the toilet in the strongest orgasm he'd ever had in his life. He groaned audiby, causing a couple of other boys in the bathroom to make cracks about constipation. Semen shot out of Biff's tiny penis and splattered on the toilet and back wall of the stall. He managed to mop it up quickly, before it dribbled onto the floor and gave him away. He was surprised at how much there was - it seemed like a lot more than usual. Then he gasped as his tiny cock twitched and shrank again.
If he hadn't made a habit of keeping his junk clean-shaven, Biff's cock would be completely invisible under a cover of pubic hair. As it was, standing on his bald crotch, it was barely visible. Still erect, it was smaller than the nail on his little finger. It was shorter than a half-inch screw, the smallest size they had in the wood shop, and almost as narrow around. His ballsack looked like a large wart. As his cock softened, Biff almost cried - soft, his crotch looked more like a Ken doll with a pimple than the groin of a healthy and virile young man.
Biff pulled up his pants, flushed the mess of sticky toilet paper, and raced out into the hall to find Karyn. Whatever happened, he needed to find her and fix this before his cock totally disappeared!