As Nikki and her dick friend watched Emily and her friends fuck each other with mer massive cock passed out for some minutes Nikki unexpectedly received a call from her mother.
"Hi sweetie, how are things going out there?" Molly asked her daughter.
Nikki looked out for some seconds at Emily covered in a giant puddle of cum on the floor, "Ummm... Excellent mom! We're taking a little break from the party".
Molly giggled, "I already know that silly".
Nikki was in shock for some seconds, "Wait what, what do you mean by that? Are you here?"
"Nope I'm home, I was cleaning your room and noticed that strange computer, so I decided to give it a look. You don't know how much I spent looking through all your transformations and all the wonderful things it could do, it made me really horny, I'm a fan of both you and Jessica" Nikki's mom giggled.
Nikki looked down staring at Jessica, "isn't the reality change supposed to work on everyone besides us? My mom knows you transformed into my dick"
"It seems that if someone looks the Chronivac and sees the transformations they will become aware of the changes. I'm fine with your mom knowing that, while she doesn't make any strange changes" Jessica answered.
"So I decided to change you two and Emily a little, she had her fun now its your turn" was the only thing Nikki heard from her mom while she was talking to Jessica, "Have fun!" Molly hung up.
"You what?" Nikki tried to ask her mother but was too late. She looked at Emily and saw how her dick shrunk and returned to her original 7 inch cock, then she stood up like she was full of energy. At the same time Jessica felt how she grew and turned bigger, making her little leopard dress rip leaving all the dick girl naked, she stopped growing when she reached 15 inches, her testicles turned black and grew until 5 inches of diameter each one, the black color extended from her balls to where her human torso began, then the rest of herself turned pink instead of her normal skin colour, Jessica was now a horse cock.
"Wow, mom definitely made some interesting changes" Nikki looked at Jessica.
"Although I didn't want something change, I completely agree" Jessica said as she drooled cum from her mouth and rubbed her own pink breasts watching her big stallion testicles.
Emily approached them showing her erect cock. "Want to have some fun?" Nikki asked her older sister, grabbing Jessica from her torso.
"Of course, but with that size you would destroy me, I have a better idea... I bet she hasn't done any blowjob since she transformed" Emily said as she put the tip of her dick in front of Jessica's mouth, then with one hand she grabbed Jessica and fully inserted her dick inside her cock throat. Emily started to fuck intensely her sisters cock, feeling really pleasurable for all three, Nikki feeling like she was being fucked like any other of her holes and Jessica swallowing all Emily's cock. Minutes later the three girls reached their climax and Emily cum inside Jessica, making her testicles even bigger, when she pulled out her penis both Jessica and Nikki exploded in pleasure as Jessica expelled absurd amounts of semen.
Both sisters fell on the floor looking at each other and laughed, Nikki having her dress fully covered of her sister's white slimy fluids.
"Wow, it definitely was awesome" Nikki screamed.
"I told you, I've been always the creative sister" Emily giggled.
"Haha, sure" Nikki paused some seconds, "I wonder if mom had fun with herself watching us"
"So all this changes were thanks to mom? She's a real perv!" Emily smiled.
"Surely is, as her daughters are" Nikki stood up, "let's going to have more fun".