Rick awoke, and went into Chad's bathroom to take a piss. He grinned down at his now monster of penis, and plucked a black pubic hair from his otherwise blond thatch.
"Hm, maybe I need another soak?" he said looking in the mirror at the dark stubble growing in on his chin. "Good thing I left the water in the tub."
He grabbed his robe, and plodded down the hall. He could hear voices downstairs, but he ignored them for now. He didn't recall leaving the door open, nor all that water on the floor. He frowned. The tub was half empty, and the suds was all gone, but there was a shimmering opalescent face shimmering on the surface of the remaining water. It was Chad's face. Rick locked the hall door and stripped out of the robe. Gingerly, he stepped into the cold water, and jerked off. He aimed carefully and the stream of cum hit the image of Chad in the mouth, nose and forehead. He grinned as the face shattered into ripples. He then turned on the spigot adding hot water to the remaining icy water. Tiny bubbles began to suds up. As the water level rose, and warmed, Rick in his new Chad body squatted down. He slowly submerged as he allowed the water to flow over him. He was literally immersing himself in Chad. He took a deep breath, and submerged his head as well. He didn't notice that he had left the water running, and it was overflowing the tub.
"Did one of you doofuses leave the water running?" the Chad who used to be Chad's brother asked. He pointed at the dripping wet spot on the ceiling.
"No!" said Donald, who had been the last one of Brad's buddies to use the tub.
"Maybe it's your brother?"
"Either way, we gotta turn it off," said Brad. He headed to the stairs, while his naked clones sat around the living room watching ESPN and eating pizza.
"Well, c'mon, guys, let's introduce Chad to his new bros!" Brad shouted.
A couple of the guys wrapped towels around their waists, but most leapt up and ran over to the stairs to follow Brad naked.
Rick heard the door open. And he could see shapes gathering around the tub. The hot water was turned off. Rick gasped as he emerged from the beneath the surface of the soapy water. Being on the swim team, Rick had perfected holding his breath for over 5 minutes.
"Chad, I thought you drowned yourself!" Brad said angrily.
Rick blinked there were 10 other Chads in the bathroom. The hall door was still locked, but they had entered through the guest room.
Rick opened his mouth, but he really didn't know what to say.
Brad filled the silent void, "Chad, meet your identical twin- er, tripl-, quad-" he paused as he counted. He looked confused. "Decuplets," suggested the former Myron.
"Identical decuplets," Brad continued.
"There are 11 of us!" Rick laments, as he stands up in the tub dripping wet.
"Undecuplets," Chad ne-Myron suggests.
"Damn, we're hot," said Rick at last.