"I think that's enough testing for one day, don't you think, Dad?"
Mike's eyes widened and he squeaked hurriedly. He didn't want this to stop! He put one paw on Jeff's leg, which was more than enough to keep him seated. Jeff looked down at him and chuckled. "Alright then, one more change and then we stop, okay?"
Mike agreed desperately, staring at his son as he typed away on the Chronivac, setting up the final change. He slammed down start, and Jeff watched as his dad transformed once more.
It was as if he was watching Mike's first transformation in reverse. His legs began to bend themselves in ways more beneficial to standing and running, his rodent face becoming flatter. He began gaining in height as his tail retracted back into his body. His paws formed fingers and toes, hands and feet, until finally, Jeff's father was human again.
Although, he wasn't the human he'd been before. No, the rest of his transformations hadn't been undone. Mike's once blonde hair was now black with a streak of brilliant white curling over his forehead. He stood a whopping 10 feet tall, with muscle that took up the whole room, squashing Jeff and the Chronivac against the wall. Jeff's face was pressed up against his father's abs, just one of his ten-pack that was as large as their kitchen table. His nose was pressed in between the foot-deep groove, and he could smell his father's thick, manly scent in the sweat that rolled down his skin. Mike chuckled. "Oops, sorry there son! Let me help you."
With one of his oil tanker arms he calmly smashed through the wall, then the other. He flexed his back, destroying the ceiling with the mountains of muscle piled on top of them. Stepping back into the wreckage he'd created, Jeff could finally breathe and stare in wonder at the man he'd created. Mike pulled himself into a few poses. "I have to say, Jeff, you chose well for a final transformation," he said. His voice was booming and deep, his vocal cords matching the sheer size of his body. The ten-foot giant flexed again, feeling power rushing through his veins. "However, I need to mention something you previously overlooked."
Jeff's eyes widened as his dad stepped towards him, and grabbed the Chronivac out of his hands. "See here, my strength is still at 1,000x my natural limit. But, unfortunately, I'm now a huge, muscle god of a man, aren't I?"
"What are you saying?" Jeff swallowed, looking a little pale. Mike smiled down at his son.
"Oh, nothing. It's just that a man this size would probably be able to lift, say, 1 tonne just by himself. Right? Times that by 1000, and well, you see where this is going, don't you?" He flexed one of his biceps. Veins stood up across the thick, leathery muscle. He smiled. "Yeah. Your dad can lift 1000 tonnes."
Mike grabbed his son and put him in a headlock. For a second, Jeff expected his arms to constrict and pop his head right off, but then his dad's other arm came up to rub his knuckles on his skull. Jeff spluttered, trying to escape, and Mike gave in and let him free with a booming laugh. "Don't worry, son, I'd never hurt you." He clapped a large hand on his back, making him stumble a bit. "Now, I think dinner's in order, don't you? What do you say to ordering some pizza?"
"Sure!"
"That's a good lad," Mike chuckled. "But I don't want you staying up late, you hear me? We've got a big day of transformations ahead tomorrow."