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NSFW: yes

Hey guys,

This story was inspired by a DM from u/Ad4waVe. I posted here earlier asking anyone who wanted a their fantasy written out in detail to come forward, and they were the first one to message me, so I hope you guys enjoy! Also, anyone who would like something similar done, please feel free to shoot me a DM! Now, on with the story.

***

“So is it OK if Natalie comes over?” my step-sister Sara asked me sheepishly.

It was the first weekend of summer, and Sara and I had the house all to ourselves. Our parents were gone for the next two weeks on a cruise, and that meant anything went in the house, so long as we promised not to tell on each other.

Our parents had asked us not to have any friends over, but I was no snitch. Plus, unbeknownst to Sara, Natalie and I had been hooking up for the past several months anyway, and I had honestly been planning on inviting her over myself if Sara hadn’t.

“I’m not so sure,” I responded, teasingly. “Mom and dad SPECIFICALLY said no friends could sleep over. Maybe I’ll tell.”

I smirked at her for a moment, and then burst out laughing. Sara hit me hard in the middle of the chest, and I wheezed as I coughed in air.

“I’m just kidding,” I said, the smile still on my face despite my labored breathing. “You know I don’t give a fuck.”

Sara laughed and reached out to rub my chest apologetically.

“I’m sorry,” she said. “I don’t know why I did that. I’ve just been so on edge since Derek and I broke up.”

Derek was Sara’s long-term boyfriend, who she had finally dumped after three miserable years just a month earlier. Sara never said it explicitly, but I got the idea that the lack of sex was making her more irritable than usual.

I smiled down at her, laughing off her physical attack.

“Don’t worry about it,” I said. “Just give Natalie a call, and I’ll order some pizzas.

An hour later, Sara, Natalie and I sat on our living room couch watching a dumb reality TV show and finishing off the second of two large pizzas.

“I’m stuffed,” Natalie said, holding herself around her waist. “I don’t think I could take another thing in me tonight.”

Sara, all the time quick with a pervy joke, couldn’t help but chime in.

“That’s what she said!” Sara squealed.

Natalie groaned, but I chuckled, despite myself. To my surprise though, Natalie lingered on the subject.

“Actually though, if we were talking about what you’re joking about, I would be a liar,” Natalie said. “I could totally take way more in me. Actually, I love being fucked while I’m full.”

Sara and I both stared at Natalie with open mouths. She had all the time been one of Sara’s more reserved friends, but it seemed she was feeling bold today. To my continued shock, Natalie’s boldness only continued.

“I need to use the bathroom,” she said. She looked directly at me. “Come show me where it is, yeah?”

I looked at Sara, and realization suddenly struck on her face. She knew exactly what was going on. Natalie had been over to our house hundreds of times. She didn’t need me to show her where the bathroom was.

Sara stood frozen in place, as I grabbed Natalie’s hand, and she led me upstairs to the bathroom. Natalie practically dragged me into the room, and slammed the door behind us. Before I knew what was happening, her tongue was down my throat.

She pulled back, and dropped to her knees.

“I need you to fuck me right now,” she said, commandingly.

She pulled my pants down, and took my dick into her mouth. I moaned, grabbing her behind the head, and shoving myself deeper down her throat. I pumped her head on my cock rhythmically, growing to full hardness within seconds. After 15 or 20 pumps, she pulled herself back and smiled up at me.

“I need you to fuck me right now,” she repeated, and I knew it was time.

I lifted her up onto the bathroom counter, and lined myself up, when suddenly I heard a noise to my left. I looked over, and saw Sara had opened the door and was peaking in at us. Both Natalie and I froze as we looked at her. To my shock, I realized she had her right hand buried in her shorts from the front, rubbing back and forth on her crotch. She was blushing bright red.

“Do you guys mind if I watch?” she asked, timidly.

I turned to Natalie, and raised my eyebrows at her. She shrugged, seeming to indicate she didn’t mind.

“I guess so,” I said, turning my attention back to Natalie.

I grabbed my still hard dick with my right hand, and lined up her pussy with my left, but a throat-clearing from below my left elbow gave me pause. I looked back, and saw it was Natalie.

“Can I…” she seemed unable to get out the words. After a minute, she found the courage to say what she had been thinking. “Can I help put it in?”

I looked at Natalie again, and again, she shrugged. It seemed that as long as she got fucked, Natalie didn’t really care what happened.

“Be my guest,” I said to Sara.

She got on her knees in between Natalie and I, and stared up at my dick in wonder.

“I never thought it would be this big,” she said, shyly. “Or get this hard.”

She stroked it absent-mindedly a few times, seemingly in a trance. It was Natalie’s turn to clear her throat.

“Sara, would you mind putting that inside me,” Natalie said. “I kind of need it right now.”

Sara snapped back to attention and giggled.

“I’m sorry,” she said. “Let me get to that.”

I gasped in startled pleasure as Sara wet her hand with her own spit and applied it to the tip of my dick. Then, without announcement, she leaned toward Natalie’s pussy and licked it fully from the opening to the clit, seeming to savor the flavor as she went up. Natalie squealed in delight, tilting her head back and closing her eyes as she rocked her hips toward Sara’s tongue in ecstasy.

“Fuck baby, you’re going to make me cum,” Natalie groaned as Sara swirled her tongue in circular motions around Natalie’s clit.

Sara abruptly stopped.

“Well, I wouldn’t want to do that,” she said. “That’s his job.”

She motioned to me, and all three of us laughed.

Sara grabbed a hold of my dick, and pulled me toward Natalie, until I was lined up with her now soaking wet pussy.

“By the power vested in me, I now pronounce you, fucking,” Sara said, jokingly. ‘

She shoved my dick inside of Natalie, and we both let out gasps of delight. Sara grabbed me around the ass and started pumping me into Natalie, to the delight of us both.

“Fuck Sara,” I moaned, sweat starting to drip down my forward as I continued to pump away inside Natalie with Sara’s help. “You’re going to make me cum.”

Natalie looked back, seeming offended.

“What am I, chopped liver?” she asked, sarcastically. “It’s my pussy that’s getting fucked, remember?”

I laughed, and pulled myself out of her.

“You know what, you’re right, Natalie, this isn’t fair,” I said. “We need to have a fair competition here to see who gets to make me cum.”

Both girls looked up at me, intrigued at that.

“I’m going to face fuck each of you, for two minutes,” I began. “If you can both handle that, we will up it to three minutes, then four minutes, then five minutes, until one of you taps out. The loser has to take my cum inside of them.”

Their once interested faces turned angry.

“But I’m not on birth control!” they said, in unison.

They looked at each other and laughed, breaking the tension in the room.

“Well, I guess if you aren’t confident in your blowjob skills…” I said.

Sara was quick to jump on that.

“Well, we all know I would win the competition, but we’re not going to like, perform, for you, you perv.”

Natalie seemed to take offense to that.

“What makes you think you would be able to beat me?” she asked defensively.

I smiled, knowing my work was done.

Before I knew it, Sara and Natalie were on their knees in front of me, ready to serve. Natalie started, positioning herself in the middle of me, as Sara began a timer counting down from two minutes on her phone. As soon as the time began, I didn’t let Natalie have any mercy at all.

I grabbed her by the sides of her head, and forced her mouth on my dick. I pumped her furiously on my hard cock, milking myself with her throat, and putting back my head as I groaned in pleasure. I looked back down and saw Natalie had her eyes fixated on mine in determination.

I doubled my speed, smirking at her. I was now pumping her head on my cock faster than I had ever fucked anyone before, pussy or mouth. I couldn’t believe she was taking it. Finally, I heard the beeping of Sara’s timer. Natalie pulled away from me, turned the side, and vomited all over the floor.

She wiped her mouth and turned to Sara.

“Good luck with that,” she said, with a wry chuckle.

Sara got in front of me, and looked up at me in terror, glancing from my sadistic smile to Natalie’s vomit-streaked chin.

“Ready?” Natalie said, setting up her timer. “Go!”

I, again, didn’t waste any time. I grabbed Sara’s head, and this time I started my pace at the double speed. I really wanted to break Sara, not because I hated her, but because I wanted to get to fuck her and cum inside her. I slammed her head down on my cock over and over again, enjoying the slobbering, gagging noises she made as I fucked her face.

Then, sensing she wasn’t gonna break unless I played dirty, I decided to go for a finishing move. I pushed Sara all the way down on my cock and held her there. I looked up at Natalie and asked how much time we had left.

“45 seconds,” she said.

“Perfect,” I replied. “She won’t make it.”

I pushed her head even further down, and she started to make frantic gurgling noises. The clock continued to tick down. 22, 21, 20.

I pulled Sara’s head off of me briefly, then forced back down all the way again, and pulled her down, getting my cock as deep into her as I feasible could. Finally, she pushed away.

“I CAN’T TAKE ANY MORE!!” she screamed

“Looks like it’s my lucky day,” I said with a laugh.

Sara looked up at me and gulped.

I had her position myself in the perfect way for my pleasure. I had already done quite a bit of fucking today, and I was pretty ready to cum, so I got Sara ready to take it in the way that was most comfortable for me. She was on her hands and knees, on the couch, with her chins resting on the arm rest and her ass pointing straight into the air.

As I lined myself up to enter her, she looked back for one last plea.

“Please don’t cum inside me,” she said. “I really don’t want to get pregnant.”

Something in the sincerity caused me to take pity on her.

“Fair enough,” I said.

I slid my dick a little bit higher and lined it up with her ass instead. I pushed the head against it.

“I guess I’ve just got to cum in another hole then.”

Sara looked down in resignation, and sighed.

“Whatever you have to do,” she said.

It was all the encouragement I needed. I shoved my fully erect dick against her asshole as hard as I could, and it slid in surprisingly easy. She winced as it went in the first time, but let out a contented sigh as I slid my cock out slowly and then shoved it back in.

“Are you actually liking this?” I asked in surprise.

Sara looked back and scoffed.

“Just shut up and fuck me already and get this over with,” she said.

I didn’t need telling twice.

I sped up my pumping into Sara’s ass, and her sighs turned to moans as I realized she was enjoying it. I looked over to my right and saw Natalie was touching herself to the sight of us. I had totally forgotten about her in the commotion with Sara, but seeing her rubbing her clit as she watched me fuck my step-sister in the ass was too much for me.

“Oh fuck, guys, I’m gonna cum,” I said.

Natalie continued touching herself, but got real close to Sara and I, watching me pump into her. Finally, with a particularly deep thrust, I unloaded my cum into Sara’s ass. Natalie got right between Sara’s legs as I shot spurt after spurt of hot cum into her tight ass. Sara squealed with delight as I filled her up.

After the 7th or 8th spurt, my cum started leaking out of Sara’s ass, and Natalie eagerly licked it up as it oozed out.

“I was hoping to get some of this,” she said, laughing.

I pulled out of Sara’s ass, and lay exhausted on the floor.

“I think it’s going to be a fun two weeks,” I said.

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