Tyler felt nothing change physically, but was confident in his new power. However, no one except his already transformed brother was with him now to test it on. He was bummed out for a few seconds before thinking about the wording again. Wait, anyone included himself!
"I want to turn into a full sex doll version of myself for 5 seconds!"
What happened next was nothing like Tyler expected. A strange state of both panic and tranquil calm engulfed him as he felt himself losing control of his limbs, his muscles, and even his organs. Shiny plastic spread over his skin and his joints quietly fused together as he could do nothing but let go of his humanity. Wondering if he had just made a terrible mistake, Tyler felt himself returning into being a human boy again as if nothing had happened. Was this what Jeff was going through all the time? The very thought of it made him both jealous but also terrified. Tyler definitely wanted to play around with being the doll, but still wanted complete control of his surroundings unlike Jeff.
"See that Jeff? I became a doll just like you!" The neko boy's cute dumb face just stared blankly back at him. Light as a feather, Tyler picked his doll brother up and rubbed his dick against the neko's naked back. Jeff felt vulnerable knowing his tight ass was about to be fucked, but could do nothing or even communicate to Tyler. Thinking of what to do next game Tyler another idea.
"My lower body from waist down will become a sex-dollified version of myself, however my penis will be replaced with a massive horse cock with equally large balls. This cock will be able to stretch up to 4 feet while inserted somewhere. It also is hypersensitive, 5 times more than my normal penis, and has orgasms that produce dozens of gallons of cum! I want to be like this until I fuck Jeff!"
Tyler felt a familiar numbing sensation return, but this time, only to his legs and lower hip areas. He poked his leg, confirming what he had wished for had come true when his finger was met with soft silicone instead of normal flesh. Suddenly, his average cock sprung to life, growing at an insane rate and taking on a distinct flared shape as he had asked. It was now reminiscent of one of those sex toys he had seen on the internet, girthy and with a dark brown hue. Tyler wasted no time and grapped Jeff the neko doll by one hand, positioning his exposed ass over him in a sitting position (it would be quite difficult for Tyler to stand now!)
Tyler slowly inserted himself into Jeff's tight hole. Although the fit was extremely narrow for Tyler's huge base, Tyler wasn't worried about any damage knowing he was just fucking a synthetic doll. He slowly pushed his way deeper into Jeff, going straight up his empty insides while also thrusting out a few times for more pleasure. His cock was more sensitive than anything he had ever felt in his life, with every internal wall of Jeff's sphincter stimulating the endless amount of nerves on his "fake" shaft. In the midst of all the pleasure, Tyler had one more devious idea:
"Jeff, your head and only your head will become lifelike again. The rest of your body will be like it is now." Tyler watched intrigued as Jeff's neko face slowly began to gain more definition, his hair turning from a cheap wig to actual hair, and his cat ears gaining real fur and twitching wildly. Once Jeff's voice came back, Tyler expected more complaining like before the transformation. However, Jeff could only scream in pure ecstasy as Tyler continued to assfuck him hard. He gave a girly shriek every time Tyler thrusted. "oh yes yes yes tyler holy fuckkkkkk~~~~~~~~!!!!
After a few more minutes, Tyler could feel his cock stretched to over 3 feet thanks to the specifications of his earlier wish. Thanks to Jeff not having internal organs, Tyler was able to plow right through his lower body and up through his chest and neck area. The cat boy could do nothing but moan as Tyler's horsecock aligned and forced his head in a submissive upwards position. Tyler saw his own shack poke through Jeff's neck skin and poke through his mouth. Jeff, still in a state of bliss, began to involuntarily bob his head back and forth on the tip, giving a sort of reverse blowjob to the protruding horse meat. Feeling orgasm finally coming, Jeff suddenly pulled his cock back a whole foot, spraying cum all over Jeff's mouth. Eventually Jeff couldn't contain the gallons and gallons coming from Tyler's huge balls and opened his mouth, letting the white fluid spray all over the room. Jeff wasn't totally left out of the fun though as he felt his tiny rubber dicklet erupt in an untouched anal orgasm.
Pulling himself out of Jeff was another adventure for Tyler but he managed to maneuver himself out eventually. His cock automatically began shrinking back to his normal size thankfully and he felt function in his legs again.