Jen locked herself in the bathroom. She sat in the sat, staring at the appendage dangling between her legs. She didn't want to believe her eyes, it had to be a dream or a horrible hallucination. She couldn't have grown a cock and balls. Normal people don't just grow cocks and balls out of the blue.
Jen fearfully lifted up her hairy ball bag. Her pussy was completely gone. Just more hairy skin behind her new testes. Jen let her ballsack go, and it slapped against her thighs. Jen was disgusted, it was so hairy and big. How did guys deal with these things? They got in the way when she walked, and now when she was sitting.
The erection she's popped in the middle of class had died down, until now. Staring at her genitals, Jen felt herself getting aroused. It was a different sensation from when she'd gotten aroused with a pussy. Rather than getting wet and tingling, her body ached. Her new penis felt strained, like someone was pulling it. Blood pumped through it, filling the veins and making it grow.
Jen gasped as her cock grew out from her body, curving upwards. The head displayed its dripping hole, pre already flowing freely. Jen guessed her cock was probably 8 or 9 inches long when hard, and an inch-and-a-half thick. It hurt so bad. It needed.... Jen knew what she had to do, but resisted. She sat in the stall with her erection for as long as she could. Not knowing that because she hadn't jacked off as soon as the transformation took place, she was dooming herself to transform further.
The bell sounded for the next period, and Jen remained locked in the bathroom. A few people walked by, confused why the bathroom door wasn't opening. Jen felt silent tears run down her cheeks as she sat there. Her cock was still painfully erect, and now there was a painful pinching sensation in her balls. She guessed this is what guys meant when they said they had "blue balls". It only seemed to get worse as time passed.
Kyle had patiently waited until everyone else had gone to class before he emerged from around a corner. He planted himself right outside the bathroom door, eager to see what had happened to Jen since she'd ran out of class. No one really knew what happened, and no one believed their eyes when they saw a cock spring from Jen's crotch.
Kyle quickly used the curse on the person sitting next to him. It was a simple curse. It made everyone oblivious to any of Jen's changes. The dare had been for the hapless student to be Kyle's personal sex slave for an entire day, no questions asked. So while Kyle had one ear pressed to the bathroom door, his female companion was busy sucking him off. Kyle's arousal grew when he heard a stall door open and close. He couldn't wait for Jen to come out, either a complete man now or a girl with a huge boner.
Jen hesitated to leave the bathroom. She thought she heard something from the outside. She locked herself back in the stall when she heard a guy moaning. She wasn't sure what was going on, but Jen wasn't about to find out. Sitting back down on the edge of the toilet, Jen came face to face with her dilema again. Her cock was still erect, and her balls had swelled significantly.
It was now or never, as Jen's next changes had already started. She didn't realize it, but her hair was much shorter, and the rest of her body much hairier. The soft feminine edge to her shape was being replaced by hard masculine muscles. But all of Jen's attention was focused on her cock.
Nervous and ashamed of what she was about to do, Jen extended a hand toward her penis. As soon as her soft, feminine hands made contact with her shaft, Jen moaned. It was electric, like she was touching her clit. But it was so much better. Jen quickly started stroking the length, from the dripping head to the hairy base where her dick met her pubs.
With one hand Jen was rubbing her cock, with the other she was fondling her breasts. Tweaking her nipples in time to her strokes, Jen felt something building up inside her. Her balls weren't so cramped anymore, but in that instance Jen felt like someone was gently squeezing them. Jen moaned even louder as she came. Her cock shook in her hand as long streams of white flew out of her phallus. It hit the door of the stall, and then pattered onto the floor. Jen was gasping from the climax. She saw the damage, all the cum she'd just ejaculated, and then went about cleaning up.
Her cock fell against her balls, completely spent. Jen exited the stall for a second time, and screamed when she saw her reflection in the mirror.