Tony's glass knees and knuckles scraped the floor as Alex pulled his little brother to sit beside his computer chair. He wanted Tony to know what was being done to him. Alex began typing, talking through the changes he was going to make, "I can see here your reluctance to incest is nowhere near where it's supposed to be, but we're going to remove that entirely." He took a moment to run his fingers over Tony's face. "You'll be back to normal, mostly, by tomorrow morning, except we'll adjust your memories. You and everyone else will accept that you've been enamored with the idea of serving me all your life." He added those changes in a general file before bringing up their father's profile, which had some changes highlighted that were promulgated by the Chronivac's autofill feature whenever awareness was messed with, "Oh that looks like fun. Dad particularly likes you becoming my toy because he thinks it'll keep me in line. And this list of kinks makes me look like a saint. I'd tell you to remind me, but you won't remember this conversation."
He finished making all of the changes, and set them to take place over the night, shifting directly from his current form to his new one as eager slave to Alex's dick. Thinking of dicks, Tony dropped the vibration feature on his own and made it a couple inches larger for good measure. He contemplated returning Tony's, but did something far more devious. Tony's dick would grow back, but without any connections to his internal plumbing.
Alex hit enter, giving Tony's ass one more pat on the ass before leaving him in the dark to ponder the memories he was about to lose. He was mortified at the thought that he'd be essentially owned by Alex. Just as the sun started to rise, his computer screen came back on *INITIALIZING PHYSICAL CHANGES* Tony felt his cock growing, like the flesh of his crotch slowly folding outward. Then his muscles began to unstiffen. He lunged forward to get to the computer and stop it, but being glass for 12 hours in the same position gave him spasms when he started to move and he fell to the floor instead. Tony looked up just in time to see *INTIALIZING MENTAL CHANGES* and his hand paused where it was hovering above the ESC button. In another moment Tony forgot why he at his computer. The young man shook his head and went to lay back down. Alex had a footy match today and he'd need his brother to get him dressed for it.
Tony slipped into his brother's room early the next morning, he knelt on the foot of the bed, between his older brother's big feet where they stuck out from beneath the covers. He sat there obediently for 10 minutes, before Alex started to stir, "Good morning Alex, how can I serve you today? I'm feeling really desperate."