"Sorry! I'm so sorry!" Said the blond boy as he tried to stop pissing. "It's just that I can't... control it." His face had turned completely red of embarrassment.
"Hey!" Mark said. "Don't worry, just finish doing it."
"I'm trying but..." The blond boy said. "It's different..."
Zach got up and help Mark to do the same. Then they made a step back until the other boy stop peeing.
"Try to aim to the toilet." Zach said. "Or you could use the urinal, it's easier in there."
The boy ran to an urinal next to him, but when he arrived he already had stopped peeing.
"Oh, finally!" He said with a big sigh. "It's terrible!" Then he looked back to the boys who were looking at him. "Oh, god! You're completely wet. I'm so sorry! Really, really sorry!" He looks like he was going to cry right now.
"Don't worry, dude!" Zach said. "It was an accident. It's normal to feel weird after some testings."
"Yes" The blond boy said. "It's just that this is my first time."
"First time?" Mark asked. "Why are you talking about?"
"Sorry, we didn't introduce to you. My name is Zach and he is my friend Mark. We're from Fertility and Body, respectively."
"Hi, my name is Taylor." The guy said. "And I'm from Gender. This is my first day as a boy."
"What?!!" Mark shouted. "Are you telling me that you were originally a girl?!! But you're several inches taller than me!"
"I know... and I didn't like it." Taylor said. "I wanted to be small and thin like when my friend Annie changed but I ended up like this. It's funny to be taller and stronger, but this penis is uncontrollable. Anyway, I should have taken I would look like my brother. He's from Fertility too."
"Fertility?" Zach said. "Wait a minute! You're Grant's little sister? No way!!"
"Why are you so astounded?" Mark ask him.
"Because Mark is one of the most bulkier boys in our Zone. He's very popular by his high amounts of semen production and everybody knows him. Wow, I didn't think you were his little sister. I had heard you were so tiny and fragile."
"Well, I guess I'm not anymore." Taylor said. "But I would prefer to be small again. I don't like too much to be the center of attention."
"I still can't believe it." Mark said. "You don't have any sign you were a girl before... It's... it's unreal!"
"It wasn't an instant process, it lasts several month were I'm on hibernation while doctor made their testings. When I went to sleep I was in a small bed and then I woke up in one two times bigger. They told me I almost had duplicated my mass volumen. They helped me to acustomize to my new height and my larger feet. But I'm still learning how to use my new penis."
Mark looked at Taylor's bulge in his pants. It wasn't little for sure and he wondered of how that thing had grown in too short time.
"And..." Zach said. "Is it completely functional?"
"If you're talking about peeing, yes. Although I can barely control it." Taylor said. "If you are talking about... the other thing..." He blushed. "I don't know... I haven't tried yet. They expect that I could make as high amounts as Grant but I'm not sure."
"Can I see it?" Zach said.
"What?!" Taylor shouted surprised.
"Don't worry. You're a boy now." Zach replied. "You'll have to begin to do it sooner or later. Why don't start with your friends."
Taylor hesitated a second and then he nodded with his face completely red.
"Ok, but just for a second." He said. Slowly, he lowered his pants until a dick flopped out of it. It was long, thick and completely smooth. A perfect specimen of boy's penis. "What do you think?"
"Hmm..." Zach said. "I don't know. I will need to see your balls too."
"My... my balls...?" Taylor hesitated, Mark saw how his face turned reddish. "Umm... ok."
He lowered his pants a little bit more until a pair of balls were free from their confinement. They were incredible big for a boy, perfect spheres, as smooth as his dick and big as ping pong balls.
"Hmmm... I think you'll make it great!" Zach said with a nod. "Don't you think so, Mark?"
Mark was completely amazed of how big Taylor's genitals were. They were bigger than his and he has got them a few time ago while he has had it own since he born. If this labs were capable of things like this, he was wondering what will awaits for him in the future. Thinking about letting his body at the mercy of someone else frightened him. They were playing to be gods and he was a pawn in their objectives.
"Now, in deal for showing you my dick and balls, you must show me yours!" Taylor said as he put his pants on again.
"Sorry, but this machine it's attached to my body and I can't take it off." Zach said. "But Mark can do it."
"Me what?!" Mark shouted.
"It's a deal, Mark!" Zach said. "Do it."
"Please, use it for peeing." Taylor said. "I really want to learn how to do it."
Both boys insisted and Mark finally had to accept it. He lowered his pants revealing his diaper.
"Do you wear diapers?" Taylor said. "Maybe you can't be able to pee after all..."
"No no no no!" Mark said. "I can! Just give a second!"
Mark took off his diaper revealing his modest set of dick and balls. They were average for a boy, but for these two guys it was a small set as they laughed a little about it. He pointed his dick to the urinal but, although he tried, nothing came out.
"I can! I can!" Mark said desperately as he tried to pee even a little. "I... I... Damnit! I hate it!" He yelled. "They took off my capability to control my bladder... that's why I need to use a diaper."
"Then used it!" Zach shouted him. "Cause you've started to pee uncontrollably!"
Mark saw that Zach was right. His penis was peeing as a hose through the floor. He quickly tried to put his diaper back on him but as he was doing it he wet Taylor's pants. After he managed to do it, he apologized to Taylor but the boy said that it wasn't a problem and that he deserved it because he had done the same a moment ago. They all laughed and agreed to leave the bathroom and return to their table in the dinning hall where Jack was waiting for Mark.
He introduced his new friends, Zach and Taylor, to him and then they ate happily some sandwiches. Mark seemed a little bit calmer between these boys but he was still worried about his other friends, Raul, Jimmy and Kevin.