It was getting close to dinner now, all 4 sisters had been out all day looking for work again. They hadn’t found anything, and it had been hotter than usual. When they got back Pinkie went up to her room for a bit, but when she noticed her clothes were soaked with sweat, she decided to go and take a shower. Grabbing some clothes from her dresser she walked down the hallway to the bathroom, but when she opened the door someone was already in the shower.

“Hey who's in there?” Pinkie asked.

“Eep, uh -it's me Pinkie.” A quiet voice replied.

“Oh hye Marble, mind if I join you?” she asked cheerfully.

“Sure Pinkie, that's fine.”

Pinkie had already started taking her clothes off before Marble replied, she liked having showers with Marble, she always helped Pinkie get off so far. Now that she thought of it though, she realised she had been acting selfish! She hadn’t been helping Marble to get off at all, but she was going to change that this time.

She jumped in the shower and started hugging Marble, her flaccid cock shaft pressing against Marbles pussy.

“Aw you're the bestest sister ever you know that Marble.” Pinkie said before giving her sister a kiss on the lips.

“Oh thanks Pinkie you're really great too, and especially since you're working so hard to help us out.” Marble replied, not mentioning she could feel Pinkie’s cock hardening against her pussy.

“No Marble you've been helping me out a lot lately so I’m gonna repay you!”

“Oh? How Pinkie?”

“I’m gonna give you a wash.” She giggled to herself.

Pinkie grabbed the soap and started to wash Marble. Starting with her back, she massaged her shoulders. Marble gave a little sound of pleasure.

“Hmm that does feel good Pinkie.”

“Yepperoni, but were just getting started” She said, continuing to rub her shoulders.

Pinkie kept massaging Marbles back, feeling her tension start to loosen. When she felt all the tension go away Pinkie reached around and started groping Marbles chest, at the same time pushing her cock to rub against her butt. She moved her fingers so they rubbed against Marbles nipples, and started pinching and rubbing them.

“H-mmm Pinkie what are you doing?” Marble moaned.

“Just repaying you for all you’ve done.” She said kissing her neck.

Pinkie let go and walked in front of Marble, her erect cock pressed against her pussy. Reaching out she kept playing with Marbles nipples, squeezing and pulling them while she started to pant. She could feel Marbles pussy starting to make her cock head a bit wet. Letting go of her nipples, Pinkie leaned forward and gave her nipples a small kiss on each one, causing her to give a slight moan. Moving down, Pinkie left a trail of kisses behind as she went towards her crotch. When she put a kiss right above Marbles pussy she stopped, and instead put her hands on either side of her pussy, spreading it open.

“Now we're at the best part.” She said, moving forward, plunging her tongue inside Marble.

Marble gasped, leaning back against the wall, putting her hand on pinkie's head.

“P-P-Pink hmm~!” She started stammering, but ended in a moan.

Pushing her tongue in she started to swirl it around, tasting Marbles insides. Marble started pushing her head harder against her crotch, so she reached up and started grabbing Marbles ass and pushed her face as hard as she could into her crotch. As she pushed her tongue further in, Marble started grinding her crotch against her face while moaning and grasping the wall. Pushing her tongue in as far as it would go, she started to pull it in and out, fucking her sister with her tongue. She kept tongue fucking her for a while, the whole time Marble moaned and writhed, but didn’t cum. After a while Marble said to her.

“Pinkie hnng~ please, I need more, p-put your c-c-cock in me.” Marble forced out, arousal giving her the courage to ask. She wanted Pinkies thick futa cock to fuck her pussy.

Pinkie stopped tonguing Marble, pulling away from her crotch she said.

“If you’re sure Marble” Pinkie panted, her cock giving a twitch.

Pinkie grabbed her shaft and stood up, running the tip over Marbles folds as she went. Putting her tip right against Marbles entrance, slightly parting her lips. She grabbed Marbles hips, while Marble grabbed her shoulders, she ground her crotch against Pinkies tip, coating it in her juices. Pinkie started to press her cock into Marble, parting her lips, and pushing the first inch in, then a second, then a third. She didn’t feel any resistance of a hymen, so she kept pressing till she couldn't go any further. Of her 15 inch cock Marble was able to take 8 before Pinkie had to stop, her cock was squeezed by her soft, moist insides. Marble started to pant and moan like a virgin, but her pussy was taking her like a whore.

Pinkie started to pull her cock out, Marbles cunt was like a vice trying to hold it in, the pressure constricting her length. She started to thrust in and out, Marble started shaking and moaning as pinkies cock pumped in and out of her cunt.

“Marble your so fucking tight, your pussy feels amazing.” Pinkie panted as she thrust her cock in and out.

“F-f-faster” Marble moaned, grabbing her back.

Pinkie started thrusting her hips faster and fast, her cock making slapping sounds as it spread Marble open. Pinkie pushed Marbles back against the wall and pulled till only her tip was still in, and slammed it back in. Fast and hard Pinkie pounded into Marbles tight cunt, again, and again. Marbles moans and pants were constant now as her sisters dick filled her needy pussy, she felt so full. Suddenly the pleasure washed over her and Marble came hard, clenching down on Pinky's dick, trying to milk it of its cum. The tight clenching from Marble caused pinkies balls start to churn, so she quickly pulled out, her cum spurted all over Marbles torso, coating her tits in thick cum.

“Wowie Marble that was a lot of fun.” Pinkie panted, try to catch her breath.

“Yeah Pinkie.” Marble said, leaning forward and kissing Pinkie on the lips.

The two of them finished their shower, and went to pass time till dinner.

Author's Note

Hey all, mention any problems or suggestions you see alright,

Thanks!