"Ok! Make everyone think that I've always been this way!" Tim explained.
"But everything that has happened already did. What I will do is make everyone think you just had a big spurt over the summer, k?"
"That will work." Tim said, still avoiding eye contact, still slightly shy.
"Ok, let's start, what do you want me to change."
"Ok...first...fix my...um...chest bowl." Tim said, and Kristi listened, making his rib cage the same shape as any normal guy.
"Next?"
"Um...make...my um...guy...penis and...testicles, bigger."
Kristi giggled. "How big?"
"Big...really big. I want...14 inches long and...um...9 inches around while hard. 10 inches soft, and 6 around. Make my balls as big as...apples!"
Kristi smiled, and Tim felt his small penis slowly grow inside his pants. "Hurry ,come this way!" Kristi said, and dragged Tim to a unoccupied corner, and quickly managed to pull a door in front of the corner, to hide them slightly. Kristi looked down, and saw Tim's bulge fill up his pants.
"Uh...it hurts..." Tim said.
Kristi smiled, and unbuttoned Tim's pants, and pulled them down, and his briefs too, exposing his growing member. It was at 4 inches long, while soft, and kept growing downward, and outwards. His testicles swelled up, looking like a water balloon being filled at a faucet, as they hung lower and lower with each passing moment. It swelled, veins forming on it's base, and moving down his shaft, as new masses of skin began to form to better anchor his genitals to his waist. Eventually, the growth finished to Tim's specifications, and he stared in awe. "This...is amazing..." He grabbed it a bit, and Kristi did too. "Wait...what if someone sees us?"
"Don't worry, we are invisible to them." Kristi smiled. "What do you want next?"
"Um...My...muscles, make me bigger."
"Which ones?"
"All of them."
"How big."
"Keep going until I say stop." Tim said, and Kristi obliged. Tim, who was already really skinny, had no muscle tone to him, but that was changing. Around the exposed flesh of his waist, Kristi could already see the outlines of muscles and veins, since Tim had no body fat. He looked down, and saw his pecs slowly filling his shirt, growing outward in all directions. He glanced at his right shoulder, watching it fill with muscle, as both shoulders broadened outward. He grabbed his right forearm with his left hand, and felt it swelling in his hand, as his bicep filled the sleeve of his T-shirt. He lifted up the bottom of his shirt, and watched each row of abs form, downward, all the way to the base of his penis, and smiled as a vein formed starting at his lower ab, and moving right into his giant penis. His thighs swelled up, taking more and more space in the underwear that was pulled down around it, as his calves swelled inside the pants that were extremely baggy, being half off. He quickly kicked his pants and underwear off, and watched his legs thicken with muscle. He realized how easily they pressed into each other, as they swelled.
He heard fabric ripping, but looked down, and didn't see anything. "It's your back." Kristi said. Tim tried to look back, as his back muscles moved outward, adding to his torso's size, and he continued to enlarge. The ripping sound continued, as the tear in the middle of Tim's back move upward toward the neckline of his shirt. He heard a burst, and looked at his right arm, seeing the bicep quickly ripped out of his sleeve. This was followed by his left arm. The rip was along the seem of the shirt, and moved upward as his shoulders grew and broadened.
He looked down again, unable to see his giant abs and midsection, because his pecs had grown so massive, and were still growing. His shirt ripped completely off his back, and was hanging around his neck, only covering the front. His neck muscles grew bigger, causing the last remaining aspect of his shirt to finally shred off and fall to the ground. He continued to grow, his muscles bulging in all directions, swelling bigger and bigger. "Ok, this is good."
Tim's growth stopped...he must've gained at least 150 lbs in muscle. he was massive. His body and veins were so big, you could actually see each vein throbbing with blood and power. "You look amazing..." Kristi said. "what do you want next?"
Tim was speechless, still looking at his massive body. "Um..." He paused for a few moments. "Make me taller."
Kristi smiled, and Tim watching as his perspective of her changed. His head rose upward, his muscles losing no mass as his body grew taller and taller. Nude, he grew, higher and higher. "Taller...' He said, and his growth picked up pace a bit. "Ok, stop!" Tim was almost 8 feet tall now.
Tim looked at himself, in amazement.