Jennifer made it to school without anymore animals attacking her, primarily by keeping her eyes focused on the ground. Her new cock had shrunk back into it's sheath, sticking out slightly still beneath the hem of her skirt, with the balls clearly dangling. "How to boys manage with these things?" She wondered. When she got to school and finally looked up, she saw all her girlfriends standing in the front of the school with their biology class, and two school buses. "Oh shit, we had that trip to see a vet practice." She slowly walked towards her friends, still shy about her new cock, forgetting that everyone would consider it normal.
When she got to her friends she found out how normal it was. One of her best friends came over and tugged on the end of her sheath. "What took you so long stud?" All the girls laughed as Jen fought against an erection. "N-nothing, just fell on the way." The girl let go of the sheath as they all began chattering, Jen staying quiet for the most part and doing her best to look at the ground. Eventually they were all shepherded onto the bus, and off to the horse ranch.
It wasn't long before they were there and off the bus, in the stables. "Now, we keep a bunch of our studs in here, let them work out some of their issues with each other." The farmer said. "Sometimes one gets banged up, which is why you're all here to see the vet work on one of our bucks." The teacher noticed Jen was looking at the ground and not at the vet who was prepping the horse for some patching up. "Jennifer, pay attention. You're being quizzed on some of this." "But I-" "If you don't I'll be forced to give you zero." Jen stood for a moment before lifting her head to pay attention. Not only could she see the one laid down for work, but the other dozen in the barn as well.
The horses all pushed out of their enclosures and through the crowd of students to Jen who was once again knocked back. "No!" She cried as the thirteen horses pushed into her. Her belly swelled to a massive size to accommodate the beasts, and eventually flattened back out to its girlish state. She felt more pressure at her crotch as her first horsecock was joined by 5 more, all of them growing out to a spectacular 7 feet, the heads as big around as plates. Her sac bulged as 13 sets of testicles dropped in, all of the doubling in size to leave a beach ball sized mound of flesh hanging from Jen's crotch. Her muscles surged as they took on the strength needed to move her new form. Her shafts shot out a torrent of cum, soaking the class with several gallons of thick white horse-girl cream.
It was a while before Jen could think straight again, once her cocks had all retreated into their sheaths. Her teacher tsk'd "Jennifer, I know with your condition you have a very high libido, and that this barn smells like horses but please, if you need to masturbate ask to go outside." Jen huffed. "M-masturbate? D...did you not see what happened?" The teacher pushed her lips together in frustration "Yes, you got hard and came all over us with your penises. I'm warning you missy" Jen nodded sadly and stood up, the tips of her sheaths and bottom of her balls barely off the cum covered floor.