Nicky walked through the woods, he knew this route like the back of his hand, but for some reason with his new height he got twisted around a bit. It had taken longer to get to the clubhouse than usual. Clubhouse probably wasn't the best name for it, but to two ten year olds it was great. They had found the old abandoned shack out here a few years ago, and it had just seemed natural to take it over. Marcus had even scrounged up an old lock to keep out others. Nicky shook his head as he looked at it, had it always been that small, it seemed so pathetic now. The sound of a rock splashing in water drew Nicky out of his thoughts. Marcus sat on the bank of the nearby stream, it formed a small pond where they had both gone swimming, in which he was tossing rocks one by one. A small smile spread over Nicky's face as he got a great idea, he shouted at his friend. "Squirt! Where's my little brat of a brother?" He was impressed with how much he sounded like his brother, enough to make Marcus jump to his feet. Marcus was shorter than Nicky had been, with black hair and brown eyes. Most people thought he was chunky just because he was a bit wide, Nicky knew from personal experience his friend was more stocky than chunky, you knew it once he decided to tackle you, Marcus was one of the best players on the youth football team. He was only wearing his swim trunks, his wet hair plastered to his head, he had of course just been swimming in the pond, it was a hot day.
"Rick? Um, Nicky left a while ago, said he was going home." Marcus looked nervous, he had a right to be. Rick usually had his sport with both of them on more than one occasion, usually because they started bugging him, but still. Nicky cracked his knuckles as he approached his friend. He was shocked how small Marcus seemed, especially as he grabbed him by the shoulders and shoved him to the ground. He crouched over his friend, holding him in place with one large paw of a hand on each of his arms. "Whatever it was, I didn't do it! It was Nicky! I swear!"
Nicky tried to give the scowl his brother usually gave but he broke into a laughing fit instead. "Dude, it's me, Nicky. I'm just messing with you."
"Nicky? It can't be. How can.. You're messing with me aren't you?" Marcus' expression went from panic to curiosity to confusion so fast it was hard to keep track of.
"8-4-2" That was the combination to the lock on the clubhouse. When he said it though Marcus' eyes went wide.
"Yeah, you look like Rick, but up close.. you're bigger aren't you? How did you?"
"Yes," He lifted one arm up, flexing a bicep for his friend, the tank top showing off his arms perfectly. "Instead of telling you.." Nicky got a grin on his face, and Marcus knew it was him, that was the same grin he always made when he was about to so something that would get them both in trouble. Nicky still held Marcus down with one arm, letting his backpack drop to the ground. He rooted around inside with his free hand until he pulled out the shampoo. "I'm gonna show you how. Nicky didn't know if the shampoo had to be in the hair to work, but that's how he did it. He poured the shampoo onto his friend's still wet head and worked it in roughly with his fingers, then dunked his hand in the stream to get the shampoo off before it could really affect him.
Marcus was too stunned with the whole thing to speak. "Dude, what the hell is wrong with you?" Nicky simply grinned and shook his head. He looked at his friend as he started to change, he hadn't really had a good look at himself growing, but right now he had a good view. Marcus' swim trunks were getting tighter, he was squirming in them as he felt the fabric constricting. He was getting taller as well, his arms and legs stretching out, but he didn't seem to be getting the gangly look Nicky had had for a while. He got wider as he got taller, he remained stocky. Dark hairs were already showing on his legs and arms. Either it was going faster for him, or Marcus was just hitting puberty quicker. The swim trunks suddenly gave way with a snap and a rip as the waistband then the legs tore apart. The fabric fell aside showing Marcus' swelling cock and balls. It was like him, not long, but thick, a small bush of black hair already around the base, and a lighter coating on his swelling balls.
Marcus started moving past twelve. His upper lip and chin darkened a bit as a bit of dark hair grew in. More was growing around his navel as well, and under his arms. He seemed to be getting hairier quicker than Nicky remembered it happening to him, but this was probably just how Marcus would age. He went through a sudden growth spurt, adding a quick six inches to his frame, his shoulders getting broader suddenly to catch up. Muscle was already forming on his heavy frame, packing on heavy. His legs were covered in dark hair, which was now growing up his thighs. His pubes were a thick bush meeting now with what was growing already on his stomach. Dark sideburns grew down from his hair and along his jaw. Probably fourteen and already pretty hairy. Nicky finally let his friend go, not sure how much longer he could hold him down, but was relieved when Marcus seemed content to stay where he was. During the growth his cock had gone erect, a five inch boner, but almost as thick as what Nicky was already sporting. Marcus grabbed it, and started stroking himself. He had figured this out a few months ago, but this felt better than usual.
Marcus was nearing sixteen. His face was loosing it's baby fat, but not getting leaner, he was getting a heavy chin and brow, even his eyebrows were getting thicker. He had a complete if narrow scruffy beard. His arm hair was thick and covered his forearms as well as some on the back of his meaty hands. The hair on his thighs was going from wispy to hairy, even getting to his ass. His hardening abs were coated in short dark hair that was slowly getting thicker, matching a spreading layer on his chest. Maybe the darker hair was making it seem more than it was but this seventeen year old version of Marcus looked to Nicky to be hairier than he was.
Eighteen and Marcus hit one last growth spurt, stopping at an even six foot that looked shorter because of his broad shoulders and barrel chest. He was stroking his dick, a decent six inches long, but thick as a beer can, with a huge set of balls hidden beneath a thick layer of hair. The hair on his thighs and ass met slightly with his bushy pubes, his whole legs covered in at least a light dusting of hair, or like his lower legs a pelt. The hair on his arms went about half way up his biceps before fading out. The hair on his chest exploded, joining with the thickening fur on his stomach. It spread out across his pecs, hiding the skin beneath a black forest, only his nipple sticking out from the dense growth. His beard had been growing thicker, his cheeks covered with short black stubble and down his neck a bit, almost meeting with the chest hair growing up towards his neck.
Nicky quickly grabbed a bucket and filled it with water from the stream. He upended the water over his friend just as he hit his orgasm, a few thick ropey shots of cum landing in his chest hair. The water washed the shampoo out of Marcus' hair and ground his growth to a halt, around twenty one like Nicky. "Damn." Where Nicky had a nice rich deep voice, Marcus had a rumbling baritone. Marcus sat up and leaned over to look in the stream trying to see his reflection. "Dude, this is awesome. And damn, do I really sound like that?"
Nicky laughed as he sat down next to Marcus, "See, told you."
Marcus looked at his friend. Suddenly thoughts rushed into his head, as he watched his face. He couldn't explain why he did, but he suddenly grabbed the back of Nicky's head with his large paw and pulled his face down closer to his. He pushed his lips roughly against Nicky's, who seemed shocked at first, even about to pull away, but then gave in, returning the kiss. When they finally broke it off they stared at each other, both blushing furiously. Marcus coughed to break the silence. "Sorry, I don't know why... I'm not.. we're not.."
Nicky shook his head. "No, of course not." But Nicky felt his huge cock tenting painfully against his shorts, just from the rough kiss Marcus gave him. He opened his mouth to object again but was stopped by another kiss from Marcus, his tongue darting into his mouth. Nicky ran his fingers through Marcus' thick chest hair, feeling the hard muscle under neath. This kiss lasted longer than the first, and when they pulled apart they smiled at each other. "Maybe we are, but damn if I care." Nicky smiled his smile again, the one that meant mischief, and Marcus felt himself returning it.