Justin heads to the University gym.

It was only a ten-minute walk from Justin’s dorm flat to the university gym. When he entered, he headed to the service desk, there was only one person working there, a male who looked to be in his late teens to early twenties, black hair, and was a bit more muscular than Justin. He was wearing a white shirt with the Universities logo on it, along with a name tag with William written on it.

Justin approached William, showed him his student and membership card, and William told him he could enter the gym. Justin started to head to the workout stations. While walking, he noticed that William was the only one of the staff working in the gym on for the night. As it was a Friday night no one was in the gym except for Justin and another guy working out at a four-stack jungle machine. He had blonde hair and had a toned body, he was wearing a red t-shirt and black shorts, they fitted him perfectly, Justin could also see a decent sized bulge in his pants, which he took particular notice of.

Justin sat down at the workstation next to the blonde guy, while thinking why he had paid attention to the guy’s bulge, and it was making him feel funny down below. Justin cleared that thought from his head and started focusing on working out on the muscles in his lower body.

Justin spent fifteen minutes working on the muscles in his lower body, he then switched to working on the muscles in his upper body, which he did for another fifteen minutes. During the half an hour of working out he had built up a sweat, and he wasn’t even tried from the work out, he felt like he could go on for hours, the **** appeared to be working.

As Justin was working out, he had forgotten about the blonde guy next to him. He was about to start working on the muscles in his lower body again when the blonde guy got up and walked over to him. When he reached Justin, the guy asked him “Hey, I was hoping you would be able to spot for me on the bench press? I don’t want to disturb you, but you and I are the only ones here at the moment.”

Justin wanted to continue on with his work out, but the more he kept on looking at the blonde guy, particularly the bulge in his pants, the more he was thinking of agreeing to the offer. In the end Justin replied, “Sure, I’d be happy to do that for you.”

Justin got up from the machine, grabbed his bag and followed the blonde guy to a bench press. Justin put his bag next to the blonde guy’s and got into position to spot. Before sitting down the blonde guy said to him, “Oh my name is Connor by the way, what’s yours?”

Justin quickly replied, “Ah it’s Justin.”

‘It’s nice to meet you.” Connor said as he sat down and got into position. They started working out together, during that time, they talked about what they studied, and what they liked to do. Justin learned that Connor was in his third year of studying science majoring in molecular biology and liked to come to the gym quite often.

During the conversation, Justin’s eye kept on moving between Connor’s pecs, biceps, triceps, and the bulge in Connor’s tight shorts, which he was looking at most of the time. Just looking at the bulge was making Justin hard down around his own bulge. Unknown to Justin the clear liquid that he had drunk, which was in fact a virus had spread faster throughout his body thanks to the workout. The virus had now reached the area of his brain where sexual arousal was controlled, the hypothalamus, which was now changing his sexuality from straight to gay, and slowly increasing his sexual arousal. The virus also had reached his dick and balls, with the virus now in his balls, the virus cells, attached themselves to Justin’s cells that produced his sperm, they started to replicate their DNA strands and inserted them into his sperm, making his sperm infectious.

The virus was now strong enough thanks to the work out to release pheromones into the localised area, which Connor was inhaling quite a lot of.

About twenty minutes later they switched, As Justin sat down, Connor positioned himself to spot for Justin, making his bulge a few centimetres above Justin’s face. During the workout, Justin’s focus is more Connor’s bulge which is slowly getting harder as he inhales more pheromones. Justin’s bulge is getting harder and harder as well, it becomes difficult to contain himself, he so wanted to stop working out, get up and furiously make out with Connor on the gym floor.

Justin had been going at it for a while on the bench press when Connor said, “I think we should stop now, you look like you need a break, anyway the gym is closing soon so we better start heading to the locker room.”

Justin agrees, he gets up grabs his bag and follows Connor to the locker room. Justin can’t help but look at Connor’s tight, firm ass, he was fighting the urge to fuck Connor in the ass right then and there.

When they entered the locker room, Justin could smell a very strong scent of male in the locker room, which increased his arousal tenfold and his dick created a tent in his shorts. Justin then knew he was fighting a losing battle, he had choice to make to give in to his sexual arousal or to try and hold on a bit longer.