Marble was terrified, after yesterday she couldn't stop thinking about what she and Pinkie had done yesterday. Hiding in her room she looked out a crack in her door at Pinkies room, when she woke up Marble was going to ask her if they could shower again. Pinkies door opened and she came out cheery as ever, Marble could already see her cock was half hard through her pajamas. Marble almost lost her nerve, but quickly opened the door and ran towards Pinkie.

“G-good mo-morning Pinkie”

“Hey marble what's up, besides me.” She giggled. “Did you wanna take a shower first?”

“A-a-actually I wanted t-t-to take one w-with you again.”

“Oh sure that's great! Everythings funner with more ponies, cmon let's get in there!”

Pinkie grabbed Marbles arm leading her to the bathroom; she quickly stripped herself and jumped in the shower. Marble took a little longer getting undressed, when she finally stepped in the shower Pinkie was already starting to soap up her hands.

“Alrighty Marble, lets make you shine like marble.” Pinkie giggled.

She starting rubbing Marble all over from the front, from her belly to her chest, but when she started to clean Marbles tits Pinkie had some trouble.

“I can't clean you very well Marble, the angle is just all wonky.”

“M-maybe if you tried i-it from behind it w-w-would work better.”

“Good idea!” Pinkie said cheerfully.

Pinkie got behind marble and started groping her tits, Marble could already feel her pussy start to tingle. When Pinkie stepped forward to press against her back, she felt something poking between her legs and bumping her pussy, when she looked down she saw Pinkies hardening cock. She stared at it for a while till she noticed every movement she, or Pinkie made caused it to rub against her pussy. Marble closed her legs and sandwiched the cock between her thighs, rubbing it against her pussy a bit.

“Whoa Marble that feels really good.” Pinkie said from behind her, a slight shudder in her voice.

It felt good feeling the little motions when Pinkie or her moved against her pussy, but she wanted more. She started to thrust her closed thighs forward and backwards along pinkies cock, grinding the hard shaft against her crotch.

“Wowie Marble, that feels super good.” Pinkie said groping her tits.

After a bit of her rubbing Pinkie took her hands off of her tits, placing them on her hips instead. She felt Pinkie start to slowly thrust with her, slowly fucking her thighs with her cock. Feeling her fucking her thighs Marble started to think maybe they should stop, but when her cock started digging harder into her pussy, she stopped thinking about it and just kept rubbing along it. Marble shuddered as she thought about what was happening, her pussy and thighs were being used to get her sister off, it was so lewd and wrong that it turned her on even more. She grabbed Pinkies shaft and started digging it as fast, and hard into her crotch as she could. Suddenly Marble locked up and started twitching, she could feel her pussy desperately trying to clench onto her sister's cock. Pinkie feeling her lock up and start to shake grabbed even harder as she felt her own orgasm approaching, thrusting a few more times the pushed her cock as far as it could go and started shooting her seed against the wall. Marble could feel Pinkies cock twitching, when she started shooting cum she watched as it hit the wall, slowly running down to the floor.

Suddenly the shower curtain was pulled back and Limestone started yelling at them..

“Alright showers up it's my turn to - What the hell are you two doing!” She shouted.

Marble froze on Pinkies still twitching cock, Pinkie on the other hand acted like nothing was wrong.

“Hey limey! Me and Marble were taking a shower! Wanna join us?” Pinkie responded in her usual chipper voice.

“This isn't any kind of shower i’ve ever seen, especially since you have your… THING between her legs!” She pointed at her cock, looked furious.

“Oh marble was just giving me a hand silly.” She giggled.

“GIVING YOU A - forget it. I’m going to have breakfast, when you two perverts get let the normal ponies have a shower.” Limestone said before storming off.

Pinkie turned to Marble and saw her almost in tears.

“Hey don’t pay attention to mean old Limestone, she’s always a grump.” Marble ran out of the bathroom and hid in her room, locking the door behind her.

Pinkie was normally the nice party pony but sometimes she had to get mean, and right now was one of those times. Throwing on her clothes she went to the kitchen where Limestone was sitting, with a scowl on her face at the table. She walked up to her and said.

“Limestone why are you always so mean, you made Marble cry!”

“Well maybe you two shouldn't be doing that kind of stuff when it's my turn to use the shower!” She growled back.

Pinkie was getting tired of Limestones attitude, all she had done so far was act rude the whole time she had been there, and had been mean to other ponies. Pinkie was getting tired of having a grump of a sister, and she got an idea of how she could change her.

“Fine then Limestone, if you're going to be mean to everyone else, then I’m gonna be mean to you!”

Despite her attitude Limestone wasn't the tallest, or even the strongest of her sisters, when it came down to it she mostly just got her way by yelling. Pinkie grabbed and pushed her out of her chair and onto the table, her torso laid on the table and her butt hanging off. She pulled down Limestones pants exposing her panty covered butt, Limestone tried to struggle out of Pinkies grip, but she wasn’t able to. Raising her hand above Limestones butt she started to spank her, a loud slap sounding when she connected with her supple butt.

“You. should. be. nicer. to. ponies” Every word punctuated by a slap to Limestones exposed butt, after awhile she stopped and let her up, her eyes watering from the pain.Pinkie grabbed her and started hugging her tightly, petting her head she said.

“I’m sorry Limestone, you were being mean to Marble and made her cry, I was just punishing you for being so mean. Can you forgive me?”

Limestone sniffled a few times before hugging Pinkie back.

“Yeah Pinkie, I-i’m sorry I yelled at you and Marble, and also for barging in the shower.” Pinked and Limestone hugged each other for a while before Pinkie left to check on Marble.

When Pinkie left Limestone reached down and felt the wet spot on her panties, her pussy was tingling from Pinkie holding her down and spanking her. Slipping her hand into her panties she started to think of Pinkie cock from earlier.

By dinner time things had settled down, and all the sisters were sitting in the kitchen eating. Pinkie had gone out with her sisters again that day to try and find some work, but they still hadn't found anything.

“Well girls we didn't have any luck today but there's always tomorrow!” Pinkie said cheerfully.

Limestone was back to her usual grumpy self by now.

“Yeah but that doesn't change that we still haven't found anything to do.”

“Well we’ll just have to look even harder tomorrow then!” Pinkie said cheerfully, though even her spirits were starting to falter after 2 days of no progress.

Suddenly there was a clang from Marbles spot at the table. Pinkie looked over and saw that her shirt and skirt had sauce all over them.

“Darn it, these were my last clean clothes.” Marble said, giving Pinkie an idea.

“Hey I know what would help you guys, changing your looks!”

“What's wrong with how we look.” limestone said scowling.

“Cmon haven't you three noticed that your clothes are boring compared to everyone else in town, and you know what they say, dress to impress!”

The three sisters looked at their clothes and decided that, maybe they did look a little boring, they all wore grey or black full covering clothes, while Pinkie bounced around in knee high skirts and T shirts of all kinds of different colors.

“And since I got those new clothes the other day, you can have some of my old stuff!”

They all agreed, and after dinner went to Pinkie's room to pick out clothes. Marble changed into a short sleeve blouse, and a knee high skirt. Limestone got some shorts, and a short sleeve button up shirt. Maud got one of pinkie's old sun dresses that came up to just above her knees.

“Now see, you three look great!” pinkie said hugging her sisters.

For the rest of the night the sisters talked till it was time for bed.

Author's Note

As many have noticed I am in desperate need of an editor. If you want to help edit bad fetish fanfiction, then send me a message.