On growing

Jack closed his eyes and willed himself to grow. He imagined his point of view getting higher and higher, his entire body getting bigger and stronger...

But how big?

Hmm... As tall as Derek. For a start.

He opened his eyes, staring right in Derek's face. Derek seemed shocked.

"Shit, man, you're as tall as me!"

Jack grinned. He was always on eye level with Derek's thick neck, now they were equals. He looked down at Ash, who seemed equally scared and turned on.

"Look at you, little guy!" Jack grinned and embraced Ash, pressing his head into his chest.

Ash looked up at him.

"Are you, ehm, proportionate?"

Jack knew what Ash was talking about. It was common for one of the guys to get out of shower and give others an eyeful, so Derek and Ash knew that Jack was packing a monster. (And Derek and Jack knew Ash was tiny down there.)

Jack gave his semichub a little squeeze.

"Yep. How big do you think I can grow?"

He closed his eyes again, and just imagined his growth. The size, the power...

10 feet now!

He rubbed his cock as his clothes tore. His shoulders filled his hoodie and ripped it to shreds. His legs became too thick and ripped his baggy pants apart. His feet destroyed his sneakers. His cock burst out of his boxers. He stood there, huge, horny, covered in rags, masturbating.

"Jack, what the fuck!" yelled Derek. "People are looking at you!"

Jack turned around, panting. Surely enough, a large group of people started gathering on the street. Some were taking pictures, most were just stunned.

"I'll give you fuckers a show!" declared Jack, still stroking his cock.

20 feet, he thought.

He doubled in size incredibly quickly. He moaned and rubbed himself. The rags fell off him.

"Fuck, I love being so big..."

He leaned against a building, cracking concrete with his monstrous bare ass. His erect cock, now three and a half feet, was a sight to behold.

Ash was basically helpless, as he just kept staring, his face white, a little tent in his skinny jeans pitched. Derek looked at Jack with fear and anger. He had to do something.

His first thought was to shrink him back. He focused on Jack being his old self, but no dice. He looked at Ash again.

"Hey, will you help me?"

Little fucker was either too shocked or too horny to respond.

"Fuck," said Derek. "Once again, it's all up to me."