Clara smiled with a shit-eating grin that would bring the joker to shame as she looked to the Chronivac. Clara may have been a sweet girl on the outside, but inside she was a depraved women who had some of the weirdest fetishes for anyone to have. She never expressed them to Jeff but with the Chronivac, there was really no choice in the matter of if they couldn't be realised.
She typed furiously at the keyboard, inputting the changes for men to undergo, and decided to put a precaution in so she made Jeff unaware of the changes. It's not that she wasn't against Jeff being aware, it was in case Jeff tried messing with the Chronivac while transformed and ruining things for herself. Regardless of if he was aware or not, this was for Clara to enjoy.
Now the main biological change was that men would be smaller and hairless (except for their scalp), and either thin and androgynous, almost feminine-looking, or thick and muscular. Men are incapable of walking bipedal anymore and must crawl on the floor. What men do gain instead is that their penises will be giant on their smaller frame, reaching a whopping 20 inches and be constantly erect, with the male testicles being the size of oranges. Men's libido will also be incredibly high and they will be sexually sensitive all over their body which means they could cum by just walking. This also means that as a side effect, they aren't able to think clearly and they won't be able to perform higher brain tasks like talking or writing.
With men acting like this, women dominate the world's economies, countries and jobs. Women remain relatively unchanged, although many women ended up developing more muscle mass as they had to perform a lot more tasks that men used to do in the distant past like hunting or building.
Women treat other women with respect, but treat men like they are simple minded pets, which in this reality they are. When born, Men are either put into a dog group or cat group, depending on if they are thick and muscular for dogs or thin and androgynous for cats, which will train them to act and sound like a dog or cat. An example of this would be that an aroused moan would sound more akin to a meow or a bark depending onthe group the man was put in at birth. When fully trained, they are sent off the a store that specialises in distributing men to women.
The behaviour of men will be very simple and instinctive. They will either eat, sleep, excrete or fuck with the latter being their most prime trait. Additionally, dog-trained men will be trained to be protective of their owner woman, while cat-trained men will be trained to be more lithe and agile. Their incredible arousal will mean they seek out any form of release and this means they could lick themselves, use lampposts or bins to grind their dicks on or even shove their dicks into other men's asses just to try and ejaculate, however even if they do ejaculate, their dicks won't go flaccid and they will keep seeking to stop the constant erection. With this comes an issue as male cum can get into a lot of places very easily and stink up the place so laws have been put into past where the amount of cum can be limited in public areas.
Women's fashion remains unchanged but men's fashion is completely different. Every man will either wear a dog tail and eats, or a cat tail and ears (depending on their group at birth). The ears will be in the form of a head band but the tail will either be attached to a buttplug, diaper or panties that the owner makes them wear. To also make sure that man is comfortable while walking, women put on animal paws on their hands and feet to stop them being cut or injured if they walk on a rough surface. What the man wears after that is for the owner to decide.
Some women choose to put men into a latex bodysuit while others choose the have men only wear the animals accessories, with a condom placed onto the erect penis to minimise the amount of cum that leaks onto the floor. Some owners choose to place and diaper onto the man as this means they don't have to deal with picking up any poo that the man defecates on the floor or in places like parks, with the exception of the man parks.
Man parks are a special park that allows owners to leave their man for a few hours. They do not have rules about what the man wears and if the man comes, pisses or pops inside the area of the park, no issues will be raised. In these parks, the man is allowed to do whatever he wants, and if he chooses to try mounting other men while inside in the park, they will leave the men to do it.
When it comes to sex for women, they aren't able to get aroused. If they try to shove anything in their vagina, it will be only painful and they won't feel any pleasure from the act. As a result, when a women uses a man to have a child, they will still be able to function normally, whereas the man will be moaning and orgasming. Women who don't have men of their own, will go to parlours where they can spend 10 minutes having sex with a pet man to have a child. Other times, a single woman may own multiple men and have children from each of them.
The child of the women will either end up in one of two places. If the child is female, the woman will be allowed to keep it and look after it but if the child is a man, they will need to send it off to a place that will train the man into being a pet. This is a good thing for the woman as men can easily get unbearable to look after before they hit puberty.
Clara then made a little addition that Jeff is her own human pet. With that out of the way, Clara waited to see the results.