I got home and stomped up to my room. My parents were out and my little brother was watching TV, he didn't
even notice my new size. I looked in the mirror and noticed my body glow, it began again. I watched my arms
grow up to the size of two bowling balls and my shoulders broaden. My abs tightened and became bigger. I felt
all my clothes split off and felt myself grow. It finished and I measured myself. I was 6ft 8 and my chest was
70", my arms were gigantic and my calves were the size of footballs. I looked down at my dick and saw it
hanging under my knees. It was 1 and a half foot long! I was a super hung, muscle bound genius! My python dick
boned up to meet me and hit my enormous pecs. I jacked off and felt such ecstasy! I never even noticed my 6
year old brother walk in.
"Will? Is that you?" I was so shocked my giant dick fell again and I tripped over my feet.
"Uh, Hi Tim! Yeah, It's me" He didn't say anything, he just marvelled at my muscles.
"Are you bigger than James' dad?"
"I don't know who James' dad is Tim" I said.
"Can I feel them?" I nodded and he walked over . I kneeled down (which was easy with my new muscle's power)
and he squeezed my arm. I pulled him up and he squealed in delight. Then he climbed up on my bicep. I flexed
and he rose up.
"Wow, It's like I'm sitting on a rock!" He said laughing. He took of his shirt and flexed his arm.
"Grrr, see I'm bigger than you!" I laughed as my bicep was bigger than the length of his arm but agreed. It
was funny and because he was so skinny and little, he actually had a little six pack! He looked down at my
flaccid dick.
"Wow! Is that your willy?" I blushed but nodded. He knocked it with his hand and I felt a sensation in my
dick. I boned up slightly and Tim smiled. Bless him, he had know idea how horny I was. He was about 4ft and I
was close to 7!
"What's happened to your tummy? It's all cut up!" I explained the concept of ab muscles as he poked and
prodded them. While he did I put on some pants and trousers to cover up my massive endowment. I had to borrow
my dad's to compensate it. Tim left after he got bored, to watch his silly shows, and I put on a shirt. It was
way too small so it fit tightly on my muscles. I growled at myself and flexed my arms several times. I was a
beast, I looked like a 20 year old but I was only 13. I also had a deep voice and was a genius.
School was tomorrow, and I couldn't wait to show everyone my muscles...