Jeff figured the first think he should do his give himself a sexy mom with expanding tits to test the limit of the Chronivac. Jeff selected his only parent, his father Gabriel. He decided to have fun with what he was going to do by leaving his father aware of the changes but everyone else except himself of course unaware.
He changed his father's gender. He head a high pitch scream as his father was changed. Jeff smiled he saw the what his father now looked like on the screen. His father looked like a very average woman with C-cup tits. Jeff then began messing about. He made it so his father tits would grow a cup size every time she orgasmed. He then raised he libido and sexual stamina and made it so she would masturbate in the house without a care. To his little sister this was just how their father? mother? has always been.
Jeff continued and also made it so his father's tits will never sag, she would never feel back pain, and despite all the growths she will still weigh like a normal person. Jeff then also added muscle growth, height growth, thigh growth/thickening, ass expansion, curvier body growth and pussy expansion to the growth Gabriel will receive every time she orgasms. Jeff then added a few last things. Jeff added that if Gabriel gets creampied her growth will double, around the house she will wear super revealing/sexy clothes and lingerie, the larger Gabriel becomes the hornier she will be and incest is normal for the family, with no ill effects.
Jeff then went downstairs after accepting all the changes he made to see his new father? mother?, since she didn't look like she gave birth to them/ a milf it was hard to tell if she was their mother. Jeff saw Gabriel on the couch naked with his little sister starting to strip naked.
Jeff continued to watch as his naked parent spread her new legs to allow his little sister access to her new pussy and leaned back a bit into the couch. Jeff's little sister moved so her face was right infront of her parent's pussy. Jeff watched as his little sister began to help their parent with their overpowering libido.
After a few minutes of watching his little sister eat out Gabriel and Gabriel play with her new tits, he saw Gabriel reach climax and then her body became what he could only describe as sexier. Jeff smiled, he couldn't wait to see how big Gabriel would become.