Mr. Yuan emerged from the back of his shop. He smiled brightly when he saw Guy, but his eyes narrowed for a second as he saw Hiro. Mr. Yuan had survived the second world war, and did not feel kindly to Japanese.
"Ah, you're back," Yuan said brightly, "and you brought a friend."
"Yes, Mr. Yuan, that stuff is great, except I'd like to stop growing just as I am now."
"Ah, unicorn powder should arrest the development. You can strip behind the screen and powder thoroughly-every nook and cranny," Yuan ordered handing him a black lacquer box with an enameled unicorn on the lid.
"I didn't think unicorns existed?"
"You'd be surprised what exists that you didn't think of," Yuan replied.
A car horn beeped outside the shop and they turned to look toward the roar of an engine. A bright red muscle car sped passed the window.
"Man, I'd love to have a kewl ride like that," Guy said wistfully.
"Yeah, cool," echoed Hiro.
Yuan smiled.
Guy went behind the folding screen, and Yuan turned his attention to Hiro.
"So, you'd like something too?"
"Yeah, I want buns of steel," cracked Hiro. He'd seen the changes in Guy, but he couldn't believe this corny shopkeeper was responsible. Unicorn powder? Come on.
"Just the thing," Yuan said reaching under the counter and bringing up a large tin can.
"What's that musclebod in a can?"
"Something like that," Yuan answered producing the piercing funnel like device mechanics use to punch open oil cans and fill cars. He punched a hole in the top of the can and removed it. A rich oil dripped from the punch as it lay on the counter. "Now young man take out your stick and dip it."
"My stick?"
Yuan patted his own crotch and nodded.
Hiro rolled his eyes, and looked at his crotch.
"You want me to stick my dick in that stuff?"
"Only if you're serious about being steel," Yuan said with a laugh.
"Okay, old man," Hiro said whipping out his cock and lowering the tip into the can of oil on the counter.
As soon as his cock touched the oil, he felt a change. His cock was actually sucking up the oil. He stared as he watched the gulps of oil appear as bulges moving along his cock's underside and disappearing into his swelling balls. His cock was actually making slurping noises. He stared and lower his cock deeper into the can, finally tilting the can so his cock could slurp out the last drop. Then Yuan produced three more cans, and Hiro's cock devoured each one.
Then Guy emerged reclothed from behind the screen. He looked perfect. His eyes widened as he saw Hiro.
Hiro's skin was glowing dark gold like it had been just oiled. His body was bigger more muscled than before. He filled his formerly loose, small nylon soccer jersey and shorts. His sculpted pecs and nipples were highlighted by the shiny fabric. Hiro was still smaller than Guy, but he'd gone from a small to a large in minutes.
"Thank you, Mr. Yuan," Guy gushed.
Hiro was anxious to show off his new body, he wanted to go fast, and was standing in the shop doorway.
"Oh, almost forgot," Yuan said as Guy reached the doorway and Hiro stood in the street next to the curb. Yuan tossed guy a small black object.
Guy caught it and it beeped as his hand closed on it. He heard a noise behind him, and turned. Hiro was changing, he was growing right out of his clothes. As Guy gaped, Hiro transformed into a metallic gold hot muscle car.
"Your own Japanese muscle car," Yuan said with a cackle.
"Wow!" Guy exclaimed. "Uh, how do I change him back, Mr. Yuan?"
"Oh, just use the man shaped button on the key, but don't do it now. He'll be naked. Get him some clothes before changing him back. Oh, but first, I'd suggest you take him for a drive, a tune-up, and a car wash. My nephew owns an auto shop on 12th that does auto detailing-it has its own carwash. Here's a coupon."