Jake was a five year old boy with a normal five year old body. His big brother Jason was a 18 year old muscle god who could seduce any lady he set his sight on. Jake wanted to be just like him and he was about to get his wish. Jake had ordered these Male Growth Pills online and he just got them in the mail today. No one was home, so it was the perfect time to try it out. "Let's see. If I want to grow up to be 19, I need to take three pills with water." The bottle was simple enough to read, so Jake did just that. Ten minutes past and Jake started to feel warm. He stripped down to his underwear and that's when he started to feel hot. Pain erupted all over his body. Yet it didn't seem that painful. It felt strangely pleasant.
Jake felt his feet contort as they grew. He forgot to take off his socks, so naturally they were now no more. The feeling went up to his legs. They grew and expanded with muscle. A slight layer of hair grew over his legs. His groin and butt expanded his underwear near breaking point. His arms followed next, growing and muscle forming. The rest of his body shot up to six feet. His pectorals started to show and six pack abs appeared. They were all just like his brother's. His face reformed and his hair grew. Everything was almost complete. There was only one part left. Jake felt his dick tingle and his balls rumble. His dick started to grow. It went erect and slid out of his underwear. His balls expanded and ripped apart his underwear, letting his cock and balls get some air. The transformation was complete.