Joseph wraps his towel around himself, thankful that it still fits. The only problem was that his larger cock was sticking out due to its length and his balls pushing on it. The rest of his body just looked like he had grown some and lost his belly fat. Joseph takes a deep breath. All he had to do now was make it to his room, lock the door, and pray that he had some clean pants large enough to hide the snake that hung from him.
But as he opens the bathroom door to rush out, he immediately runs into his 17-year-old sister. Joseph knocks Dawn back, and as she stumbles, she accidentally pulls the towel off of her younger brother. The towel falls to the floor and Dawn is met with the full view of her growing brother.
“Joseph?” She questions as the change was shocking. She had expected that the ointment would take some time, not change him in minutes.
Joseph scrambled for the towel, squatting down and letting his cock graze the floor. Joseph shuttered as he lifted back up, his sensitivity increased. He places the towel back around him as he looks at his sister. “What happened to me?”
Dawn walks her brother to his room, closing the door on the off chance that their parents came home. Joseph sits on his bed, his towel now just laying over his waist as Dawn walks back and forth, thinking.
“So, you put the ointment on, waited, washed it off and then started to grow?” Dawn asks, haven been told the story of Joseph’s shower by him.
“Yes.” Joseph replied. “Where did you get that stuff from anyways?”
“It was just a store from the shops near downtown. I didn’t that, well, THAT would happen.” Dawn says, leaving out that her brother was the test subject for her giving the ointment to Kevin, her boyfriend.
“Well, something in it made me, well grow. I don’t think I am older, but I am definitely bigger…. Aaaarrrr.” Joseph moans as a new heat fills his body. He stands up, as his towel falls to the floor again and he holds his arms close to his chest.
Dawn watches on as her brother’s muscles swelled and spasmed while new growth begun. He lifts up his arms as his biceps inflated, forearms thicken. Next his chest starts to push out as his torso stretches him longer. His abs become more defined, protruding from his stomach. His butt expands while his thighs strengthen and enlarges, his calves bloating with new power. Joseph stumbles as even his feet grow with new power. His heels come off the ground as the muscles on the balls of his feet expand, along with his toes. His feet lengthen to accommodate, helping him to stand on the new, larger balls on his feet.
With a lack of better term, Dawn watches as her brother continue to hulk out. He looked more like a teen bodybuilder standing on his toes. Even his hands thickened with new muscle and growth, before Dawn saw something she had hoped to never see.
Joseph’s cock started to twitch, not wanting to be left out. Blood rushed to the large member, that now looked like it should belong to this teen. Joseph moans loudly as his cock grows erect to its full ten inches. Joseph is hardly able to turn as he moans out “Towel” to his sister. She realizes that Joseph was about to blow a load and picks the towel up from the floor.
Joseph rams forward as Dawn picks up the towel, folding it over his cock and placing it between him and his bed. He then gives a few thrusts against his bed and bath towel before releasing a beastly moan when he starts cumming into the towel.
Dawn watches in shock and amazement as she sees her brother in profile coming into his towel. He grew from his old 4 foot 10 inches to the 5 foot 2 inches from the shower, to now 5 foot 10 with him standing on the balls of his feet.
As the last of his seed states to drip from his cock, Joseph turns to his sister with needing eyes. “Sis, help me.” Dawn could see that he was scared.