The swim coach shouted while Marco and Ty hugged.
"Marco, get your lily white ass back here and in the pool. And put a Speedo on!"
Instantly, Ty collapsed in Marco's arms. He wasn't Ty anymore, he was a shiny black Speedo clutched in Marco's hands. Marco held the Speedo out in front of him. Had that really been Ty? Was it really still, Ty?
The shadow of the coach loomed over him, and bellowed, "PUT THAT SPEEDO ON NOW, MARCO!"
Forgetting for a moment that it was Ty, Marco pulled on the silky black Speedo. It fit him perfectly as Ty had wished it.
Ty was confused too. He hadn't meant to become Marco's Speedo. Maybe his wish had been a bit inspecific about making the Speedo fit. He tried to speak but it was like he had cotton wool in his mouth. Actually, it was because his mouth was made of Lycra and Spandex. He had to will it so he could open his mouth first to speak, but before or rather as he opened his mouth, Marco stepped inside him and pulled him up. He was horrified, and amazed and also feeling very purposeful. After all he was now a Speedo, and he was being the best Speedo he could be. This confused Ty further. He tried to focus, but he kept thinking: Be tight, supportive, your wearer needs you to help him swim his fastest, you are the best suit in the world.
"Now move it! Into the pool! I'm going to use two stop watches and verify that you can really move your fat ass that fast in the pool. If you can do that again, damn we might win the Regionals. Hell, we might win the Nationals."
Marco found himself up on the starter block waiting for the coach to blow his whistle. He adjusted his suit tying the drawstring tighter and blinked. He swore eyes stared up at him out of the liner. Ty stared up over Marco's pubes, he tried to speak but all he got was a mouthful of hairy scrotum. He'd have to talk to Marco about shaving. What was he thinking? He wasn't going to stay Marco's Speedo after today! Why not? he asked himself.
"Stop looking at your crotch and get ready to dive in. Do a crawl up and butterfly back - 10 laps! Now-" the coach ordered and Marco moved. The whistle blew and the water splashed and Marco changed into a human torpedo. The coach stared from one stop watch to other shocked as Marco broke every swimming school record he could think of. He had Marco do more laps, freestyle, scissor, even dog paddle. The kid was short and stocky out of the pool, but in it, well it was like he was made to swim. The coach went over and extended a hand to help pull Marco out of the pool. He noticed the outstretched long webbed finger, and pulled the tall youth out of the water. Marco stood there dripping looking down into the coach's eyes. Then everything shifted. He was still dripping wet, but now looking up into the coach's face, Marco was his old short stocky self. The coach's gaze shifted, but he didn't notice anything odd about his top swimmer changing from a mesomorph into an endomorph. He was a bit taller than most mesomorph, so he was more of a combination of ectomorph and mesomorph with a bit of amphibian webbing on his hands and toes thrown in for good measure.
The water seemed to wash away all of Ty's thoughts and anxieties of being other than the best Speedo he could be. He felt happy, strong, secure and purpose driven.
"Good work, Marco, now shower off, and hit the sauna. And remember, school rules, you wear your swimsuit in the sauna," he said paternally.
As Marco walked back into the locker room, the water wicking off his suit, slowly Ty's consciousness and memories returned to their human focus - at least more than they had been when he had been in the pool. Good, thought Ty, Marco is going to shower and take me off. But that didn't happen. Marco as was his custom showered and lathered up his body and suit rinsed and headed off to the sauna to relax his sore muscles. He seemed to have forgotten about Ty's condition in the wake of his success, or perhaps part of everyone taking Marco's changes as normal had meant that Marco had taken Ty's transformation into a Speedo as normal too.
Ty was sure that as soon as Marco took him off, he would be able to change himself back and set things right.