Jeff went into his older sister's room to see what she would do. Jeff opened the door not caring for the consequences and saw his sister staring at her cell. Jeff watched as Janice used the Chronivac to summon their 26 year old neighbor Gabriel and her two friends Mia and Kelly . He then saw their clothes disappear and Mia squeeze her body to Gabriel's right arm, while Kelly squeezed his left with hers. Jeff saw his sister Janice's clit enlarge into a 4 foot horse cock. He then saw Mia and Kelly merge into Gabriel.
Jeff moved into Janice's room to get a better look at what was happening. He saw as Kelly and Mia merged with Gabriel, Gabriel's cock shrank into his body getting replaced by a large cunt and a pair of E-cup tits grew out of his chest. Gabriel quickly became a bombshell of a woman with three heads. Jeff saw all the heads look the same, having the same blonde hair, however Mia's head on the right had green eyes, Kelly's head on the left had blue eyes, and Gabriel's head had red eyes. Jeff the saw Janice move onto her bed, lying down nude on her back, with her 4 foot horse cock standing straight up, and her slim body and DD-cup tits on display.
Jeff then saw Gabriel move onto the bed as well and saw as Gabriel's sexy legs grew longer allowing her to have her cunt right above Janice's dick. Jeff then saw Gabriel lower herself onto Janice's cock, taking all of it in her. Jeff notice that despite the size of the cock and its girth, Gabriel took it fully in and their was now signs of it bulging through her. Gabriel began to ride Janice's cock, both of them moaning and their new pleasures. Jeff felt his mind alter as he now recognize the Gabriel, Mia, Kelly person as just Gabriel his new sister-in-law; Janice having married her recently. Jeff also knew that he can come in at any time to Janice's room to have sex with them.