Amber looked up at her brother; he was massive, hulking with muscle towering over everyone. Yet she wasn’t scared; somehow she knew her brother wouldn’t harm her, even if he easily could with his new frame.
“You’re not scared of me, are you?” Justin replied to Amber’s conclusion. He tried to look as scary as possible, flexing his entire torso in a most muscular pose.
Amber looked at him, not frightened at all, and started laughing. She placed her hand on one of Justin’s broad shoulders and said: “For you? Why should I? You’re my big bro…you’ll never scare me?” Then she walked passed him.
Justin’s angry expression melted from his face as he had no effect on his sister. How could that be? He turned around and grabbed his sister from behind, lifting her off of her feet, several inches into the air. He hollowed his back, lifting Amber even higher, as he started tickling her. Amber, very ticklish, started laughing and kicking her feet all around.
“No no! Stop! Stop it!” she said laughing.
“So…still not scared of me now?!” Justin said laughing as well as he continued tickling.
The twins saw how Justin just opened the famous Smith family tickle-attack, and initiated their own attack. “Charge!!!!”
Both boys jumped onto Justin’s towering body and started tickling him. Justin was now carrying his three siblings, who were all kicking, screaming and laughing, without too much trouble. Unaware to the twins, his new thick skin made him immune for tickling, yet he decided to play along.
“Oh no, they’re killing me!” he yelled as he let himself slowly fall on his knees. Dad, mom and Jerome looked on laughing as the three siblings were trying to get down the beast. They had so much fun, laughing out loud, ultimately ending on the ground, tickling each other.
The evening went by quickly. No-one was scared of the hulking teen and Justin himself started to get used to his new height and weight. The twins were impressed with his body and inspected every muscle, which Justin happily flexed. After a while, Jerome went home and Justin was getting tired. He had to get to college the next morning, so he said goodnight and went up to his room. His bed squeaked under the new weight, but it managed to not fall apart.
The next morning, the alarm went off quite early. At 6am, Justin launched his arm on his alarm clock, completely smashing it to bits. He immediately sat up straight in his bed, awake, looking down at his body, rubbing the sleep out of his eyes he blinked again and looked down again.
“So it wasn’t a dream…I just forgot how strong I was…” he said as he looked at the smashed alarm clock. He flexed his arm and felt his biceps. “Damn, I think I’ll never get enough of that!”
As he felt his own flexed arm he felt something else twitch under his bed sheets. He opened them and looked down at his crotch. “Oh holy mother of god…it’s massive!” There, through his maximally stretched boxer briefs, was the biggest boner he had experienced in his life. Everything had grown on his body to match the proportions, even that.
At first he was too afraid to touch it, but he figured it was part of him now, so why not. He put his big hand into his boxer briefs and tried to push his morning wood down. As he let go of it, it jumped straight back up. “Well, that was useless” he said to himself. He figured it might just go away if he stopped thinking about it, as it usually did. He headed for the shower, but as he entered the bathroom and saw his own full reflection in the mirror, his boner sprang to full mast again, almost tearing through the stretch cotton of his underwear. It was the first time he saw his own new body at full-size, and even he was blown away.
“Damn!” He flexed every available muscle, inspecting every body part is his physique, before finally getting into the shower. He jacked off to his reflection while in the shower, leading to the best masturbation of his life.
He had a hard time finding clothing that fit; the only thing that was somewhat suitable was his sweatpants and sweatshirt. They were usually about a size too big, hanging loosely over his body, but now they were stretched skin tight over his physique. It was a funny sight to behold, yet it was the only thing he could find on this short notice. “Mental note: have to get out and buy some new clothes, soon!”
After an extensive breakfast, he ate more than usual, his buddy Jerome rang the door to pick him up for school.
“Dude! I forgot how big you were!” Jerome said as Justin opened the door.
“Yeah, so did I when I woke up this morning!”
The two boys headed towards Jerome’s car. It was a tight fit, but Justin managed to squeeze himself in on the passenger’s seat. The entire car’s suspension shifted towards the right.
“Well, here we go!”, Jerome said as he started his car, “I’m so curious how everybody is going to react on your new physique…”
“Yeah, so am I…”, Justin said as he was thinking about Kim, the hottest girl at college, “Do you think Kim will like me now?”
“Kim!?”, Jerome said a bit surprised, “THE Kim? You fancy her? Damn, so do I…but I hardly stand a chance against you…look at you!”
Justin laughed. “Ah, sorry buddy! Life’s unfair, isn’t it…?” He laughed harder, softly punching Jerome on the shoulder.
“Ouch, watch out where you punch, Hercules”, Jerome said as he rubbed his shoulder.
“Oh sorry buddy, I did it as soft as I could. Still need to get used to these!” Justin said as he raised his arms in the air and flexed both of them. It was a tight fit in the car, but his biceps popped to full size, further stretching out the sleeves of his sweat shirt.