Tanya was always a nice cousin, so when she was moving out of town and needed help to pack Myron was one of the first to answer. He wasn't as helpful as some of the rest of the family and friends, but an extra set of hands is an extra set of hands. Even if those hands are connected to a 450lb fat man. As the day went on and the group went through room after room boxing things up Myron was working in Tanya's garage when he stumbled upon an old computer and a small flash drive inserted in the back. Tanya walked in to see Myron inspecting the old thing. "Hey Myron, of course you're the one who'd find that old thing. You know what, take it. I think you'll have some fun with it." Tanya then got up real close to Myron and whispered into his ear, "That's how I got you your favorite speedo." That was all Myron needed to hear. He quickly loaded it up into his car and continued to help out Tanya until everything was packed up.
*Hours Later*
Myron made his way back to his small apartment, and lugged in the old computer. Plugging it in was easy, but the thing was so old it barely was functioning. He looked at the small drive sitting in a usb port, and tried to plug it into his personal laptop. A pop-up covered his screen and simply asked to be downloaded. Myron hit continue, and an old fashioned loading bar ran until completion. Then an application opened title Chronivac. An old UI was presented to him, before another pop-up appeared. "It seems you're running an old version of Chronivac. Would you like to update?" Myron hit continue and a modern loading bar ran, this time for much longer than the original instillation.
Once finished the application closed out, and then reopened with a sleek UI. He saw a dropdown menu title targets and clicked on it. He saw his name, but also an unfamiliar one, Jeff. He clicked on Jeff and a 3D model of a speedo appeared on his screen. Then a small prompt, "Would you like to return Jeff to original form?" Out of pure curiosity Myron clicked yes. A small loading bar appeared slowly progressing forward until finally hitting 100%. "Transformation complete." Myron was caught off guard as he heard heavy breathing from behind him. He turned and saw a rather large, but handsome man standing with a dopey grin. He assumed this was Jeff, and he was standing in the spot where Myron had last left his precious speedo. He turned back to the Choronivac program, making sure to get a good look at Jeff in the process. Myron has no clue what Jeff looked like before he was a speedo, but he certainly fit his type now.
Over the years of being a swimsuit and then a growing speedo with Myron his physique changed in his original body. He now carried a substantial amount of body fat, easily more than Myron himself. His stance was wide as his fat pushed his thigh apart, his chest pushed his arms out, and his neck fat fusing his head to the rest of his flabby form. It was a beautiful sight to Myron who was erect at the sight of the man. A prompt on the screen read out, "Target no longer has mental function, would you like to create a new one?"
Myron had been single for a long time, he certainly had friends with benefits, but those weren't love in his eyes. This, this was his out. He immediately went to work in creating a new life for Jeff. He made him a businessman, who loved Myron a lot, almost as much as he loved food. He worked hard to support the both of them, and he was kind and sweet and loving. Myron also made his entire life history, and every like and dislike and fact. The final checkbox was asking to change reality to match Jeff's new life, which Myron hit yes on and then processed the change.
Myron was hit hard with a major headache, which as soon as it came it left. His memories changing to reflect a new life, a new life with his lover Jeff. He turned around and saw his lover sprawled out on their bed making bedroom eyes at him. Myron loved when he got like that, and hoisted himself up, and over to his big fat teddy bear.