Tanya pulled into Sarah and Amy's shared home. She'd been to Amy's parents house before, but in all the time since they'ed moved out togther she'd never been invited over. Tanya presumed it was a privacy issue of Sarah's.
"Mom? Dad? What are we doing here?" She asked as she put the car in park.
"Oh don't worry about that." Said Chuck. "We'll get to that soon enough."
Tanya rolled her eyes, her parents games were getting on her never a now, she's only just started her day after all. She pulled up the app on her fathers phone to check the history. Surely something had to be there.
"Don't bother dear." Came Mandy, "we put everything in effect and erased the history before changeing ourselves into your dicks! Ill give you a hint later though!"
Tanya grumbled to herself as she rang the door bell. "You two are such dicks!"
To which both Chuck and Mandy both replied "yep, kind of the point!" And snickered to themselves.
Amy answered the door which was a complete surprise to Tanya as last she'd seen, Amy only had her dick. Now she was adorn with four arms and four breasts, each topped with a mouth for a nipple.
Without a greeting, Tanya stated the obvious. "You made some changes, where did all this come from?" She gestured to Amy's torso.
"Oh these? I was 'playing around' with Sarah. Don't mention the app by the way. It funny watching people just be chill with stuff. I see you were playing a little too." Amy pointed down to the two extra limp cocks on her crotch.
"Not really." She sighed "these are mom and dad." She pointed to them respectfully. "They are playing games and had me come here for some reason."
"Ohh, I like games. Come on in" Amy moved aside to let them in. They were greeted by Sarah who looked nervous for some reason, maybe anxious was a better word. But glancing down at the four penises on her crotch she quickly realized why Amy had made her additions.
Sarah quickly darted to her guest's side. "Tanya, you'll believe me! Clothes! You know what those are right? Pants, tops, underware."
'Clothes?' thought the three family members. Not having any clue what she was saying. "Clothes?" Tanya asked. "No..."
"Come on! Fabric you were on your body! Keeps you warm or looks good?"
"Fabric? Like blankets and towels? Why would you carry those in yourself?" She genuinely asked having not been exposed to the awareness of the past.
Sarah stomped off in a fit of anger not getting through to her.
"What was that about?" She asked Amy.
"I've no clue, I came home and its all she's been raveing about since then? I hope I didn't like, glitch her or something with the app."
Just then Tanya felt a warmth in her chest, looking down she saw her brests swelling in size, not only her's but Amy's as well. All four swelled from their modist B cups to easily Fs or Gs! Tanya's also approached that size.
Additionally, her nipples felt burning hot as they swelled outward to five inches in leangth looking like long erasers off of a pencil.
Amy's lip nipples seemed to become fuller in a way.
"You just going to stare at your tits all day Tanya?" Amy asked, clearly unaware of her own growth.
"Oh, uh you don't notice..." She stammered before Chuck and Mandy cut her off. "Dont say anything, it'll be funner to watch what goes on in reality."
Just then Sarah came back into the room. Her D cup breasts had also grown up in size! Now bigger then her head in a H cup size, stiff pointy five inch nipples like Tanya's standing erect before her. She angled herself funny walking around corners and furniture carful of their surroundings.
"Uh, nothing just day dreaming." She said to Amy sitting down to join her in the couch. Her heavy breasts caused her no back pain, but clearly weighed a great deal as they sat on her lap sitting down now.
"So, what kind of game are your parents playing?" Amy asked.
"I don't know..." Tanya replied begrudgingly "I'll let you know when I find out..."
Mandy chimed in now. "Good girl, keep playing along. As a reward ill give you that hint. Every half hour a change will occur. Us three are aware of them, but no one else. You have to spot them! Which won't be hard, as you can see..."
Tanya hefted one of her breasts and gave a grazing touch to one of her nipples. The sensation sent sparks down her spine and made her neathers flare with subtle arousel. She understood now why Sarah was so carful with her steps.
"I can tell already this is going to get out of hand." Thought Tanya.
"Yep!" Replied Chuck and Mandy.