As Kyle and Cody got out of the bus after a quiet and somewhat awkward ride, Kyle's day at school started off surprisingly uneventful. First and second hours passed like normal; boring homeroom and shop. Due to his shop class, he had to wear jeans today, so he had put on the loosest pair he had. But, Kyle's period of ease came to a crashing stop for third hour; PE. As he filed into the changing room, he already began to dread what was about to happen. School dress code said he had to wear shorts, which meant he had to A., change in front of a room full of guys and B., keep from getting a hard-on from a pretty girl working out. This wasn't gonna be easy.
Changing went OK for the most part. The behemoth decided it wanted to stay soft and inside it's sheath, which still looked massive through his underwear. He was pretty sure he caught a few glancing stares at his junk. Kyle's hour went much more smoothly than he had hoped. No unexpected erections, no demanding, throbbing problems to take care of. What caught him unawares was fourth hour.
Biology. He had completely forgotten that his biology class was going on a field trip to a local ranch to learn the ecology of animal husbandry. The short drive to the farm was mostly uneventful, as was most of the trip. After about two hours touring the cattle, swine, and poultry of the farm, they came to the horse barn. While most of the class were furiously taking notes, Kyle's mind was in a much different place. As he stared into the field, his eyes attention was suddenly caught; a stallion had mounted a mare and was rutting her! Instantly, his horse cock surged in his pants, blood beginning to rapidly fill it. He tried to look away, to focus on ANYTHING but those horses, but he was simply enthralled by them.
After what felt like an eternity, but could only have been a minute, the stallion gave a mighty final thrust into the mare, before he quickly pulled out, his fluids pouring from the female's vagina. Kyle was really in trouble now, with his cock almost a foot out of his sheath already, it's girthy length protruding past the top of his pants. He tried to push it down a pant leg as discretely as possible, his baggy jeans helping matters slightly. Not wanting to attract any attention to himself, he shimmied over to his teacher and asked to use the restroom, to which the teacher begrudgingly said yes. One of the students that had attended PE with him sneaked a peak at Kyle as he seemingly limped away with a strange gait. If he didn't know any better, he could have sworn Kyle's right leg was thicker than his left. Thoughts raced through his mind.