David thought for a second. He initially wanted to be huge, but he then realized that he didn't want to outgrow the house, at least not yet. He decided ten feet would be a good height, the same height as his house's extra tall ceilings. He quietly wished, "I want to be ten feet tall."
As soon as he spoke, the pendant began to glow, and he could feel his muscles tense and begin to stretch out. The clothes he was wearing stretched and finally ripped apart, and fell to the ground. After ten seconds, the deed was done, and he stood in front of Sam and Paul completely naked, with his friends only coming up to his belly button.
"Ahhh, that felt great!" David said.
"Holy shit!" Paul said. "You're huge."
"Well," Sam said, secretly disappointed, "he could have grown a lot bigger."
David looked down at his body. He was still as skinny as he was before, but everything was now a lot longer and bigger. He flexed, revealing a little bit of muscle on his arms and pecs, but nothing major.
"What do you think? Should I go ahead and try to scare Wes like this?"
"Yeah!" Paul exclaimed. "He'll shit his pants!"
Quickly, David formed a plan in his mind. Wes was out at the gym playing Basketball with Mark and Josh. He would be home in about a half hour, and the first thing he always did when he got home was to go upstairs and take a shower. That would be the perfect place to surprise him.
Saying goodbye to Sam and Paul, he quietly walked upstairs, making sure not to be heard by his mother, who was in the kitchen. He went into the bathroom, leaving the door open halfway behind him. He climbed into the shower and sat down, filling the tub completely. Looking up, he saw that his head was about four feet from the ceiling. He decided that it would be even scarier for Wes to see his little brother completely fill the shower, up to the ceiling, and besides, he wanted to experience the thrill of growing again, so he whispered quietly, "I want to grow till my head touches the ceiling."
The pendant around his neck glowed again, and David felt his muscles begin to burn again and his skin was tingling. He decided to try to have some fun with the growth, and he breathed in heavily as he grew, pretending he was growing bigger by his own power. With each breath, he grew another six inches, until finally, he felt his head bump against the ceiling, and the growth stopped. He looked down at his body. He was now very cramped; his knees were at his chin, and his ass was wedged tightly in the tub basin. Normally, this would have been an uncomfortable situation, but David was loving every minute of it. He leaned back, reveling in his size, and as he did so, he felt his member begin to pulse.
He didn't have enough room to stretch out and really enjoy himself, but he leaned back and began to fantasize of looming over Wes, having his older brother tremble in fear at his massive size, and having him and Mark and Josh worship him and do what he commanded. And then... what next? With this pendant, he had the power of a god!
He snapped back to reality when he heard a car door slam outside. Wes must be home! David quickly pulled shut the shower curtain, trying to be as inconspicuous as a 15-foot tall 14-year old boy with a 2-foot throbbing erection could possibly be.
After a few seconds, he heard footsteps coming up the stairs, and the bathroom door swinging open and then closing. He heard the sound of pants unzipping and clothes rustling while coming off, and then saw the shadow of a figure before him. This was it! This was the moment!
The figure's hand reached out and pulled open the shower curtain, and David heard a cry of shock come from...