Jeff didn't know what Clara had typed into the Chronivac as a means of being surprised when it happens. He was excited to see what Clara would do and how much the Chronivac could pull off with just a few commands imputed into it, that just thinking about it got him oddly erect.
"Hey Clara, how long do you think the transformation will take?" Jeff asked
"I dunno. Maybe an hour or so. Go get something to eat and grab something for me too while you're down there." Clara responded, knowing just what was about to happen.
Jeff, being kind, obliged and left Clara at the Chronivac. He headed down into the kitchen, blissfully unaware what fate had in store for him.
He was grabbing some bread from the cupboard when the first change began. His erect penis (which would now be permanently erect) was beginning to lengthen and strain against his boxers and Jeans. Jeff reached down to remove the uncomfortable strain on his crotch and incidentally triggered himself to cum a load without much effort.
"God damn it, I'm going to need to clean myself up after this." Jeff mumbled annoyingly as he went up to his room to change.
He went back up the stairs, making sure to avoid Clara's gaze and entered his room to try and find a clean pair of clothes. He went scavenging through his clothes but found that many of them were way to big for him. He remembers them fitting before so he was confused why they didn't now.
"I'm gonna have to ask mom to buy me new clothes again. Jesus everything is too big." Jeff mumbled in frustration as he kept looking for something for his exposed lower half, unfortunately for him, Clara just so happened to walk in when he was half naked.
"Jeff why ar- oh my." Clara said slightly surprised as seeing Jeff's mighty member being erect for all to see.
This wasn't the only thing to cause Clara's surprise as Jeff was now considerably smaller then her. She was like 5'4 while jeff was probably now 4'6 and he was also considerably more androgynous looking, minus the elephant, or more the dick in the room to signify he was clearly only a single gender. Speaking of his dick, it was clearly huge and erect and was leaking cum onto Jeff's carpet which smelt very salty. One weird thing Clara noticed was how Jeff's hair had tinges of pink in it for some unknown reason.
As for Jeff thoughts on the matter, he was both embarrassed and aroused. When he turned around to meet Clara's eyes, his dick hit his thigh and leaked cum onto the floor of his room and sent a shiver of lust he had to grit his teeth to hold in a moan. It wasn't a good spot to be in, but in some ways it was to Jeff.
"Jeff, you... you forgot to put your condom on. Jesus what am I going to do with you now." Clara said with a hint of joy. She had to think of a response to the situation and she managed to pull on from the back of her mind.
"Nyat do nyu meown." Jeff meowed as his mental changes began to kick in. His thoughts changing to go along with his fate.
"You know what I mean. If you don't wear it you're gonna leak cum every where. Tou already got some on your bed and its still leaking now." Clara shouted, although not angry at all.
Jeff reflexively stepped back and looked at his dick and leaking cum. While trying to say that he shouldn't be wearing one as he doesn't remember it being normal for him to wear one, he just couldn't argue against Clara and begrudgingly apologised, although sound more like aroused meows.
"Don't worry my little kitty Jeff, Clara won't hurt you. I'll help you put on your condom if that help you feel better." Clara softly spoke into Jeff's ear as she placed a pair of fake, pink cat ears onto Jeff's head, the same shade as is now notably pink hair.
"Nyank nyu." Jeff tried to speak but very incoherently.
Clara, enjoying watching the degradation of Jeff, went to grab a box of condoms and put one onto Jeff's erect member. The sensation of it sliding up his penis made Jeff cum even more with some of it even getting onto Clara's hand.
"Nya!" Jeff mowed loudly
"Don't worry kitty. It's just a little bit of cum, nothing excessive. I'll just go wash it off, but before that I need to do something to that little anus of yours." Clara chuckled as Jeff tilted his head like a confused cat.
From inexplicably out of nowhere, Clara pulled out a butt plug shaped like a cat's tail and shoved it up Jeff's sensitive ass. Mowing in arousal and leaking even more com into the condom, Jeff had pretty much completed his transformation.
Clara couldn't fully enjoy seeing it yet as she had to go wash her hands, leaving Jeff too lick himself as he acts like a pet. And androgynous little boy with a 23 inch dick and body and pubic hair that was dyed pink as a fashion choice by Clara in this reality. His life as a human pet was just beginning.