Jeff selected his sister Emily using the Chronivac. He wanted to test it on her while getting revenge for all the pranks she pulled on him. He saw her info display on the Chronivac including all her hidden kinks. Jeff realized that his little sister had a daddy kink, she wanted nothing more then to make love to their single father. Their mother having passed away a few years ago.
Jeff decided he could have fun with this and decided to select himself and his father Gabriel. He then gave himself, Emily and Gabriel the ability to be moulded by the people they have sex with. Jeff then went further by making Emily not just have a daddy kink, but instead have a mommy kink. Jeff continued with this by making it so Emily would do whatever she could to turn Gabriel female and teach him the pleasures of the female body till he got addicted to it, just like all those TSF hentai were the guy turn women gets addicted to sex in the female body.
He also gave Emily the ability to not only be moulded by the person fucking her but she could also become inanimate objects like clothing and she can give lewd powers to the person that she is having sex with. Jeff altered his ability so that not only can the person he is fucking can change him, he can change them in return.
He then made it so everyone who has sex with his father Gabriel will want to turn him into a women and who ever he (Jeff) has sex with will what to keep him as a man. The last dew changes he made was they could also change themselves by masturbating, Emily will become extremely horny and lewd, incest is fine in their family, and Gabriel will be horny, but as he quickly learns the pleasures of the female form he will become a massive cock-hungry slut.
Jeff hit enter then transferred the Chronivac to his cell so he could use it on the go.
Jeff went downstairs and into the living room. Jeff saw his father sitting nude on the couch and in-between his father's legs was his nude little sister who was giving their father head. Jeff decided to stay and watch for a bit to see what Emily changes their father into (he knew that his father will become a women but he wanted to see the specifics.) and what Gabriel will turn his slutty daughter into.