Cole had locked himself in his room for most of the day after Erika had left. His sister, that fat bitch, had made a scene after she had caught him cumming inside her little girlfriend Erika, but really it was Erika that had put herself in this position, right? The salve made her so horny. The salve made him so horny, as well.
Wet tissues covered his bedroom's floor and bed, and he could not remember how many times he had come. He was in sweat; he just couldn't get rid of his strange heat. Growing himself a huge cock with the salve sounded like a cool idea at the time, but now he was starting to regret it. His shaft, though soft for now, was burning, and his balls hurt.
He got up from his bed and grabbed his swimming trunk. A few laps in the cool water of the swimming pool might just help calming things down a bit. Erika had told him something about the pool a few days back, now he couldn't remember what exactly but it must have been that.
Walking out of his room, he noticed his sister Melissa's room was closed. She was probably still sulking. He shrugged and went down to the backyard, where the swimming pool was. After carefully splashing his body with some water with his hands, he just let himself slip into the pool and let himself float there. The cool water felt strange around his junk; he was only barely getting used to the space between his legs being so packed.
After an hour or more cooling down, Cole's mother called out for dinner so he got out of the pool and put on some clothes. He felt oddly famished, but maybe it wasn't surprising with all the physical efforts that came into, well, coming. His sister was absent.
"Where's Melissa?" he asked as casually as possible.
"Oh, she must be still in her room." Cole's mother replied. "She said the school left her out early, she's sick with something. She'll probably grab something to eat later, so leave her some."
Cole shrugged again. After dinner, he played some video games in his room, but soon enough he was feeling too exhausted and decided to just crash in bed naked.
About an hour before his morning alarm, Cole came out of his slumber, a familiar stiffness under the bedsheet. "I suppose it can't be helped..." he grumbled to himself. As he was pulling the bedsheet away, the touch of the fabric on his chest made a strong shiver ran through his body.
"What the fuck?.." he yelped in surprise. Looking down on his chest, the area under his nipples had swollen visibly, creating two small mounds of flesh. The areolas had also grown a little larger, with erect nipples to boot. Cole was starting to grow breasts.
"That's... that's not possible... I didn't spray my chest with the salve" he thought to himself. What was it that Erika had said about the swimming pool? He still couldn't remember.
He grabbed a nipple between his fingers with his left hand and pinched. It felt real, and sent an elestric tingle down his spine. His erection throbbed in response, pre gushing on his belly.
"Fuck... feels so good," he moaned, and grabbed his cock with his right hand to start pumping, his knot swelling rapidly, all the while tugging on his own nipples. The more he grabbed at his breasts, the more fluids gushed out of his mutant member. His sighs became moans, higher and higher pitched, until he bit his pillow to shut himself.
A surge of cum exploded on his belly and splattered under his breasts as he reached climax almost immediately, the canine knot pulsating in his hand. A black veil fell on his eyes and all he could see for a minute were stars, on the verge of fainting from pleasure.
A moment or an eternity passed before Cole could prop himself in a sitting position again, his monster dick softening. He rushed to the bathroom, locking himself to clean up and look at the reflection in the mirror.