Olivia previously made the Chronivac install in her phone so she wouldn't need to worry about non saved changes out of range, and set a password in both computer and phone to avoid anyone but her that wanted to change her precious settings.
"The hell are you planning you bitch!" Jenny yelled at her enemy, unable to control her body at her will and obligated to follow her.
Olivia just grinned. "Why so mad? Night's coming so why not having some fun between us, isn't that right Jeff?"
Jenny couldn't hear Jeff but saw how Olivia's increased bust wiggled, knowing her boyfriend's hypnotized mind was inside it. After some minutes of useless discussions both girls reached their destination, the house of one of Olivia's friends. The popular girl barely knocked the door and someone instantly opened.
"Oh? Oh! Olivia! Jenny! How is it going?" A guy from their school said.
"Excellent! Thanks for inviting all of us to here!"
"No problem! I thought you girls hated eachother or something"
Jenny was about to complain but Olivia used the app to mute her for some minutes. "Haha, You know, people change!"
"Um sure! And what about Jeff, Jenny, isn't he coming?"
"Oh she recently broke up with him, so I brought her here to cheer her up" Olivia said while faking her sadness towards Jenny, while Jenny wanted to strangulate her.
"Oh... Sorry to hear that. Don't be shy! Come here and enjoy all you want!"
The girls entered the house noticing the loud music, neon lights and many people from their school there, but before they did something exciting Olivia walked and made Jenny follow her to the bathroom, making sure no one saw them.
Olivia locked the door and stared at Jenny which just stood in front of the mirror and regained her ability to speak. "Why don't you take off all of those useless things?" Olivia pointed at Jenny's clothes.
Jenny tried to struggle but her efforts were for nothing, as her body moved on its own and obeyed the commandment, throwing her shirt, bra, jeans and panties on the floor, blushing knowing the humiliation she was going through by the person she now hated the most.
Jenny heard something behind her, then saw Olivia's extended arm throw her white short and panties. "The hell are you doing!?" Jenny yelled at the mirror looking at Olivia's reflection approach her naked self.
"Here is where the fun part starts honey~" Olivia kept getting closer to Jenny until she couldn't more and their legs touched, begging the Olivia's plan she just typed on her phone. In a matter of seconds Olivia's feet began to fuse with Jenny's heels until they merged into a single pair, later the same fate happened to their legs, resulting in a pair of legs with the torsos of the two girls above.
Jenny gasped in fear, she was becoming one with Olivia, if being controlled by her wasn't the most awful part. "S-stop this nonsense Olivia! You horrible monster!"
Olivia mischievously giggled. "So you can turn your boyfriend into your tits but if I do this I'm the villain? Come on Jenny, I know that I always had bigger boobs than you but you had that killer ass, thighs and waist I wished for." Olivia slid her hands through Jenny's belly, looking and feeling how their shared legs and ass increased their mass to match Jenny's, even bigger since Olivia was added.
"U-ugh! Are you happy now!? You have my stupid ass and thighs you were desperate for!" Jenny yelled one more time, still fused from their waist to their feet.
"Oh Jenny~ you're right, I no longer need you." Olivia moved her mouth to one of Jenny's ears, "but I can't let you go, I have a bigger plan for you~" she whispered and started her last idea.
Jenny's arms began to assimilate with her torso until she was fully limbless, then said torso began to be swallowed by Olivia's crotch, like sinking in it. "WHAT THE FUCK, OLIVIA! STOP TH-" Her mouth was shut by Olivia putting her fingers inside, using her other hand to push Jenny's head and make the absorbtion faster.
"I just couldn't let the rest of you go to waste you know? I'm not that bad. I always thought you were a pussy, an ass, so why not making you both of them, both of mine~" Olivia said continuously pushing Jenny. At that point only Jenny's head was above Olivia's legs, slowly melting until she began to replace her vagina with her own face. Olivia removed her fingers from Jenny's mouth to then insert then inside her nostrils in the form of a hook, dragging her nose to her rear and assimilating it with her butt hole.
"Please... Stop!" Jenny couldn't do nothing but beg, stuck as a mouth with eyes between Olivia's legs while her nose rested in the zone of her anus.
"I'll be sure to make you enjoy all of this as much as me!" Olivia still having her fingers inside Jenny's ‘nose’ began to toy with it like it was clay, morphing and changing its form, combining the two nostrils until they made a single orifice, looking like a puffy, donut-shaped butt hole. For the final touch she played with Jenny's mouth too until it transformed into the vertical slid of her reproductive track. Jenny saw how everything turned black as her eyes were slowly shut by Olivia's crotch flesh.
Olivia looked herself at the mirror, showing off her highly improved assets she stole from Jenny, they were even better thanks to the extra mass of her own legs and ass she added into the fusion, noticing Jenny's hair replaced her public hair as a black bush, different from her blonde one.
"Better sweetheart?" Olivia fingered herself, despite her transformation, Jenny could still think, feel, hear, taste, and sadly smell from Olivia's ass. "You'd love our new self! The best part is that no one will ever guess where did you go, so this will be our girls secret~" Olivia cleaned her vagina or rather Jenny's mouth with some toilet paper to then put her panties and Jenny's pants since her shorts wouldn't fit her now, hell even Jenny's pants felt a little tight with her extra mass.
Olivia left the bathroom like nothing happened, none would question her sudden rear grow since she used the app again to alter reality and make everyone unaware of her change, but without making them forget about Jenny. She enjoyed the party as Jenny suffered the consequences.