The sun begins to set over Sugarcube corner and an excited Pinkie Pie bounces around on her bouncy tail decorating her entire house with Gummy's help as she passes the time to wait for some very special packages to arrive. She then hops to the kitchen to check on the cookies and cupcakes but they're still not done. So she decides to bring out some drinks for the occasion as well. The doorbell suddenly rang and Pinkie rushed to the front door with a big smile on her face. She could not believe her eyes, her bouncers arrived. She takes them inside, blows them up, and finally places the cutie marks for each bouncer. With her decorations all set up and the wardrobe all set, it was now time for the party to begin.
The Doorbell rings again and in came Twilight, Rainbow Dash, Fluttershy and Rarity looking sexy as ever. The girls began their normal activities during the sleepover and then a few minutes later, they started to have a little dance session. The girls soon began to start playing "20 questions" and Rarity is sitting on her bouncy ball trying to stay sophisticated. Fluttershy kicks off the first round while drinking a bottle of sasparilla. Twilight was giving her mostly "No" answers but Fluttershy didn't give up. She then gets on her ball and accidentally knocks Rarity off. Fluttershy apologizes and the two girls began to giggle as Rarity got back on; But then, she begins slightly bouncing after the feeling of sitting on the ball. She suddenly stops and goes back to being sophisticated during the gameplay. Rarity starts to feel a little horny after a few seconds and began bouncing some more and suddenly her big breasts begin bouncing as she bounces a little more. Fluttershy turned to Rarity for some help but her jaw drops when she sees Rarity bouncing on her ball. Pinkie's nipples began poking from the inside of her shirt as if her Pinkie sense of sex were kicking in and with a smile, gets the rest of the balls inserted with big shafts on top of them. She calls the rest of the girls into her room leaving Rarity alone to enjoy herself and then the REAL fun began. Pinkie and the others decided to have a contest, whoever can keep bouncing on their balls without cumming, will be the winner. The competitive Rainbow Dash says that she'll win this contest as she's been bouncing her partners with strap-ons. The bell dings and the girls began bouncing around the room. Bounce after bounce the girls held things together to increase their chances of winning. Fluttershy started getting a little horny during the first minute and her pussy is now starting to get wet. Twilight became the second and started moaning. Pinkie's Panties were nearly soaked from her pussy but after 2 minutes, she ejaculated. The contest was still going and the 3 competitors are still springing to victory. Twilight suddenly ejaculated and falls off her ball laughing and now it leaves Rainbow Dash and Fluttershy. Rainbow Dash was nearly cumming as well as Fluttershy but they both kept bouncing until in about the last 5 seconds Rainbow ejaculated a rainbow of cum. Fluttershy, the cutie with a tutu, and the panty-covered booty is the winner and the girls cheered and laughed after all the fun they had.
Rarity, with her eyes closed, rubs her big bouncing boobs and she continues bouncing on her ball. She bounced so hard she squeezed her big bouncy boobs until she ejaculated a massive load of cum and a loud moan of pleasure. Catching her breath, she wanted more but things became too quiet in the house. She turns to the rest of the girls and she cannot believe what she's seeing. The rest of her friends in their bras and panties with their dildo bouncers in their hands. Seeing them like that made Rarity's pussy wet and with that, she smiles and claps with glee. Pinkie grabs the dildo for Rarity and puts it on her ball but before she can bounce again, Rainbow smacks her big sexy ass covered in her short purple dress. To make it more erotic for them, Pinkie grabs tutus for herself, Fluttershy and Twilight, and Rainbow on the other hand stuck with what she got. Rainbow Dash rubs down Rarity's back and began kissing her neck and Rarity returns the kiss as well. The two girls turn to each other and began kissing nonstop and Rainbow's hand grabs Rarity's big bouncy ass covered in a pair of baby blue briefs. Rarity takes off her dress, slides her panties to the side of her pussy, and hops onto her dildo bouncer as well as Rainbow Dash. The two girls began bouncing as they moan with pleasure and their big boobs began bouncing too. Rarity squeezed her big bouncing boobs while Rainbow Dash rubs her pussy; The two kept moaning until a few minutes later, the two horny girls began to squirt a massive load on their balls. The fun was not over yet, Pinkie and Fluttershy with strap-ons came out and they decided to take turns fucking each other. With Pinkie Pie bouncing on Rainbow Dash and Fluttershy bouncing on Rarity, Twilight watches as she bounces on her dildo bouncer. Pinkie Pie smiles as Rainbow Dash grabs her big bouncy tits. Fluttershy was bouncing very slowly cause this is her first time doing this type of thing. Twilight begins to get horny and starts masturbating and bouncing at the same time. A few minutes later, Rainbow Dash pumps harder and faster in Pinkie's bouncy little pussy. Pinkie Pie giggles and moans to the big bouncy dick going in and out of her pussy. Rarity pumps Fluttershy fast as well and she began to smile. Fluttershy began grabbing her bouncy boobs and begins moaning in pleasure. Twilight continues bouncing and masturbating as she watches the greatest foursome she had ever laid eyes on. The pumping began to go faster and faster until in five seconds, as Twilight begins to cum, Rainbow Dash and Rarity both cum inside Pinkie and Fluttershy.
1 hour later, the house was not completely covered with cum and the girls are in their nightshirts, nightgowns, and pajamas. As the crickets began chirping, they dozed off to dreamland. Pinkie thought that the sleepover was successful...which it was. As she began sleeping, Rarity rolls closer to Pinkie grabbing one of her big boobs with a smile.
