πŸ“š sibling-rivalry Part 22 of 16
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EROTIC COUPLINGS

Sibling Rivalry 22

Sibling Rivalry 22

by cucumberman
19 min read
4.76 (21100 views)
adultfiction
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This is Story # 41 of my series about my post-marital sexual journey. It is tangentially related to a prior series - "Coaching a College Grad," but reading that series is not necessary.

If you want any background on me and how I got here, you can read the very first story I published (Babysitter Lauren) or my author's profile. You may also see references to prior stories/people, but for the most part each story stands on its own.

Not everyone likes me or my stories. That's OK. My style isn't everyone's cup of tea.

I enjoy all comments.

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Rose

A little backstory on this one, for those that may not have read the "Coaching a College Grad" series.

A girl named Ally was the oldest of three daughters of one of my best friends. I knew the family very well and we had spent a lot of time together in their backyard pool, vacationing together, etc. when the kids were younger. Ally has a younger sister, Rose, who is two years younger than her, and yet another younger sibling, Penny, two years younger than Rose.

I started fucking Ally when she was 22 and had graduated college and moved home for the summer, leaving her new (and first serious) boyfriend several hundred miles away. She had always had a crush on me, and after she graduated, she came to me for help with sex. She was very inexperienced and naΓ―ve and wanted an older man to teach her so that she could properly please her boyfriend.

I fucked Ally for about three months, showing her every trick in the book, then she moved cross country to a new job.

At the time, her sister Rose would have been 20 and in her sophomore year of college.

Fast forward now two years later.

The back deck of my townhouse overlooks a small woodsy park area behind my development, and the park has a walking trail with some exercise stations. One of the stations, a flat bench with bars to hold your feet for sit-ups, is very near my deck and I can usually see whomever happens to be using it.

One Friday evening in late spring as the sun was going down, I had finished a run and was out on the deck cooling down. Looking into the park, I saw a shapely figure stretching, then doing sit-ups on the exercise bench. I could see she had a great head of orange-reddish hair, tied back in a ponytail, and a nice body with a BIG, round ass. I had a feeling I knew who it was, and I wanted to get a closer look. Since I had just finished an evening run, I ran down the deck stairs and onto the path, as if I was just finishing up my own workout.

As I passed the ginger on the sit-up bench, I recognized her as Rose, Ally's younger sister.

I quickly stopped and said "Hey Rosie!"

She looked up from her position on the bench (kind of eye level with my crotch) and immediately recognized me.

"Oh Hey Mr. G!" she replied. "What brings you out here?"

"I might ask you the same, I live right over there, but you're a few miles from home."

Like Ally two years before, Rose was now a recent college grad, and living with her parents until medical school started. I had seen her at her parents' house just a few weeks prior when I was over for some drinks by the pool.

Rose had been a field hockey player in high school and the first two years of college, but she gave it up to focus on her studies. She was taking some time off after college to work and save some money, then she was off to medical school.

Rose was really smart and very mature for her age, and if you didn't know better, upon meeting her in a social situation, you'd have guessed she was a doctor already, she was that mature, well-spoken and professional. I had known her since she was a toddler, however, so around me she was much more casual.

She pulled herself into a sitting position and said "Yeah, but I need the workout. This is gonna be my new workout routine. Run two miles from home to here, do the workout stations, then run home. College made me soft!"

"Well," I responded, "I wouldn't go that far. You look great to me."

Rose gave me a sideways look, and I wondered in that moment whether she knew about me and her big sister. Ally swore she had only told her friend Taylor, but who knows what sisters talk about.

I knew Rose was VERY close with her mother, and that she and Ally had battled each other in a pretty fierce, heated sibling rivalry their whole lives, so I can't imagine that Ally had confided in Rose that she was fucking their dad's friend. If she had, then any sibling fight between them could result in Rose spilling the beans, and make my life a nightmare having to face their father.

Still, the look she gave me was curious, and I wondered what it meant.

I would soon find out.

"Well thanks," she said, "I appreciate the compliment. I feel like I'm in pretty good shape, but this big butt of mine needs some work."

"Rose, at the risk of being really inappropriate, I wouldn't change a thing. Your butt doesn't need any work; it's fantastic."

"You think so huh?"

I saw a sparkle in her eyes, and something else.

She continued, "Well tell me, what are you thinking about when you look at it?"

Rose stood up, turned around and gave me a good look at her ass in tight yoga pants. She bent forward slightly and stuck it out toward me. It was heavenly.

I was surprised at the direction this was going, and how quickly. When I came to get a closer look five minutes ago, I wasn't planning that it might get sexual (although you never know right?). I just wanted to sneak a peek.

"Rose," I said. "I'm thirty years older than you."

"I know. I'm just asking a simple question. What do you think about when you see a nice ass on a woman, any woman? Do think about how it looks when she's sitting in a beach chair or on a couch?"

"Well, no, of course not."

She turned to face me again.

"Well what then? Let me guess - I'll bet you think about how it would look if you were fucking her from behind, how it bounces when you thrust in and out of her."

I was starting to blush.

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"Yes, that's part of it for sure."

"So, then I guess you're saying that when you complimented my ass just now, and when you saw me in my swimsuit a couple weeks ago, you were thinking about how I would look on my hands and knees, throwing my ass back at you while you fucked me like a bitch in heat?"

A young couple was walking by holding hands as Rose said this, and they giggled as they heard her and went on their way. I hoped to God they didn't know either of us.

Rose was really throwing me off here. Normally I'm in control of sexual situations, especially when I've got an advantage in age and experience. But Rose had me on my heels and things were escalating quickly. I didn't know if she was teasing me or toying with me or what, but I knew I had to get my footing back.

I stepped toward her and got really close, towering over her, close enough to smell her sweaty fragrance from her workout, and a hint of muskiness that was the result of her now evident arousal.

"Well like I said, that's part of it. But, I was also thinking about spreading your ass cheeks and tonguing your asshole, and slapping that big ass until it's beet red, while I fuck your wet pussy and pull your fuckin' hair."

Rose groaned "Oh God" as I said this, then threw her arms around me and jammed her tongue down my throat. It was one of the most aggressive kisses I've ever gotten, and really erotic.

"Do it," she commanded as she gripped my growing cock and squeezed it, rubbing it through my shorts and bringing me to full hardness quickly.

"Right now?" I asked. "Here?"

"Right now, I need it," she answered.

Rose turned around and pulled her yoga pants off, getting on her knees and bending over the sit up bench. She arched her back and stuck her big, glorious ass out at me.

"Fuck me."

I was stunned. At the same age, her sister Ally was very naΓ―ve in the ways of sex. Rose had no such problems. She clearly was experienced and needed no lessons, and what she obviously needed was an immediate fuck. This came out of nowhere!

I was worried about more people walking by, but it was almost dark by this point and I suspected we wouldn't see anyone else. And the risk of being seen heightened the excitement even more.

"Fish or cut bait," I thought.

Dropping my shorts, I knelt behind her, felt her wet pussy with my fingers for a second, then jammed myself into her.

Rose threw her head back and hissed "yesssss, fuck me!!"

Rose's big ass was a thing of beauty, round and firm and too big for her body. She used her grip on the sit-up bench for leverage to really throw herself back at me. I grabbed her hips to really plow into her.

I wanted this to make this experience last for a while, because it was really great and I didn't know if it was a one-time thing, but I was also worried about being discovered. So, I decided to speed things up.

I told her, "Finger your clit to get off, then grab my balls when you're ready for my cum."

I watched her left-hand reach back between her legs and diddle herself, and within a minute she was shaking in orgasm.

"I'm coming," she cried, "keep fucking me!"

I obliged her and continued pounding away, cum boiling in my balls. When I felt her hand squeeze my balls, I yanked back on her red ponytail and drove in deep.

"Take my cum Rosie," I said as I pumped a load inside her.

She released my balls and went back to her clit, her head snapping back even further, another orgasmic groan coming from her throat.

When we were both spent, I let go of her hair and her head flopped forward. I pulled my cock from her with a wet plop, and cum started flowing out of her. I placed my hand under her cunt and caught some cum on my fingers. Rose's head turned to look back and me, and I jammed my cum-soaked fingers into her mouth.

Her eyes rolled back as she sucked the cum off of them with another low moan.

Finally, I stood up, helped her to her feet and brushed the tan bark off of our knees. Grabbing her by the back of the head, I pulled her toward me for another kiss, this one only slightly less aggressive.

She pulled back and said, "I broke up with my long-time boyfriend six months ago and haven't had any cock since. That hit the spot, but I need more. Are you home alone tonight? I can be over in about an hour or so."

"See you then," I told her.

With that, she took off running back toward her parents' house.

**************************************************************

Rose was back about an hour and a half later. I hadn't told her my exact address, so I was watching out the front window for her as she circled the parking lot of my small townhouse development. I waved to her from my door way and she spotted me, smiled and pulled into a nearby spot.

She approached me standing in the doorway and licked her lips, then got up on her tip toes and gave me a peck on the cheek.

"You ready?" she asked as she brushed by me and into the house, grabbing my hand and pulling me along with her.

"Born ready," I replied as I turned to follow her.

Rose led herself through my house, even though she'd never been there. Certainly a very confident young lady. She went up the half staircase to the main living area of my house and surveyed the area.

"Nice bachelor pad," she commented. "Very tidy and clean. And so big. I love it."

We walked into the living room and she spun around to face me. Throwing her arms around my neck, she attacked my mouth with hers again.

I pulled back and asked, "would you like a drink?"

"Later," she answered, and pushed me back onto the sofa. As soon as my ass hit the cushions, she was on me, straddling my lap and immediately grinding her pussy against my crotch.

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Rose was wearing a short jean skirt and some kind of halter top that tied in the front. It didn't leave much to the imagination. I reached for her ass and felt that she had no underwear on. I squeezed her bare ass and we made out like horny teenagers, her bare pussy grinding against my shorts and creating quite a wet spot.

I let go of her ass and brought my hands up to her tits, fondling them through the thin material of her top, until she reached between her tits and unclasped the snap holding the thing together.

Her tits spilled out; freckled, about a B cup, but very cone-shaped with puffy, soft light pink nipples, a stark contrast to her sister's tits which were more round and had pointy, hard brown nipples.

I lifted her left breast to my mouth and gently licked the tip. Rose was having none of the gentle stuff, however.

"Bite me!" she screamed. "Bite my nipples!"

I latched on and sucked, my teeth clamping down and catching the tip of her tit, I bit down and sucked hard. She responded by grinding her hips even harder and getting off with a loud groan.

"Oh God yes, I'm coming, keep sucking my tits."

Rose was frantic, grinding on the bulge in my shorts and getting off on having her tits sucked and bitten. Since I was wearing only gym shorts, I was easily able to work them off over my hips with one hand, my hard cock instinctively lining itself up with the opening of her pussy as it was freed from confinement.

Rose felt it immediately, my mushroom head poised at her entrance, and she sunk right down on it, throwing her head back and letting out a Tarzan-like yell.

The next few minutes can't even be described. Rose's hips were in constant, frenzied motion, up and down, round and round, back and forth she grinded and humped while she held onto my shoulders, digging her nails into my flesh while I gnashed her tits with my teeth and held onto that fine round ass. She bucked like a bronco and I was holding on for dear life.

I don't know if she was having a series of orgasms or one continuous one, I just know that she was riding me like no one ever had and it was a wild scene to be a part of.

Finally, Rose slowed her pace and her body relaxed. She collapsed forward, throwing her arms around my neck and burying her face in the area between my head and my shoulder. I listened to her breathing slowly calm down as I stroked her still-damp hair and felt beads of sweat rolling down her back. My cock was still buried inside her, but all movements had stopped. I was actually starting to soften as the minutes ticked by.

Rose finally lifted her head and pulled back, looked at me and took my face in her hands.

"I can't even explain to you how fucking bad I needed that," she said.

"You don't need to explain," I replied. "Your actions did all the talking for you."

"You know," she said as her hips slowly began to move, bringing my cock back to full hardness, "You've fucked me twice in the last two hours and I haven't even seen your dick yet. I know it's big because I could feel it, but now I have to see it, and suck it and get some cum in my mouth!"

Rose dismounted from my cock and slid to her knees between my legs. My cock was covered in her pussy juice, and the fabric of my sofa had a big wet stain from the fluid that we created with the past ten minutes of frantic sex. Rose was much calmer now as she began to stroke my cock.

"Wow you have a big dick," she said. "I love it!"

She leaned forward and took a few licks of the head of my cock, very casually.

"Mmmmm, pussy juice and pre-cum. Yummy," she said as she continued playing with me.

Her ministrations were not intense, she was just softly stroking my shaft.

"If you couldn't tell, I love love love sex. Lost my virginity about a week after I turned 18, and haven't slowed down since. I'm not a slut though. Until today, all of my sex had been with three steady boyfriends."

"Hey, no judgment here Rosie," I assured her. "I love sex too, and honestly if there's such a thing as a male slut, well you could call me that."

"Yeah, I'll bet you get a lot of action. Great looking, tall and in shape, really nice house. I'll bet you get horny divorced pussy all over the place. And even a bunch of married pussy I bet."

"I do OK," I replied. "And you can add young pussy to the list as well."

She laughed and said, "I'll bet."

Rose continued: "My high school boyfriend took my virginity soon after my birthday. We fucked two or three times a day all summer, then we broke up when we went to different colleges."

"My first college boyfriend was a basketball player on scholarship. Tall black guy, really big dick, like yours. He broke up with me after a year because I was wearing him out and he was failing his classes and missing practices. I made him fuck me like five times a day and he wasn't getting anything done in between."

"The last boyfriend I had for almost two years. Same deal, we'd fuck literally every day, usually more than once. But he was in ROTC so he left for the military at Christmas break. I figured there was no way I could wait for him, so we broke up when he left. That was the last time I had sex, a going away fuck with him around Christmas. His dick was about average, same as my first boyfriend."

Rosie giggled as she ran her fingertips around the head and rim of my cock, causing it to jump. She traced the blue vein with her fingertips, and occasionally cupped my balls while we chatted.

Rose went on, "When I saw you on the running trail, something inside me just snapped. Never in a million years did I think I would just get fucked by a random guy like that. Like I said I love sex, but those were the only three guys I slept with, and I made them wait for a month after we started dating. But as soon as you said how great my ass looked, my pussy got wet immediately and I couldn't control myself. I hope you don't think I'm a whore."

"Not at all. We all have needs and sometimes shit happens. I'm just glad I was in the right place at the right time! So no, I don't think you're a whore."

"Just be warned though," I continued. "Sometimes when I'm really into it, I might call you a slut or a whore, but in a sexy way, not a derogatory way. It's all part of passionate sex, not to be taken personally. Is that OK?"

"Hmm, I don't know," she smiled knowingly. "Can you give me an example?"

With that, I grabbed her hair on the back of her head and yanked her head back.

She had a bit of fear in her eyes as I said to her, "Time to start sucking my cock you little whore. I'm gonna come deep down your throat, and you're gonna swallow my cum like the slut that you are."

The look in her eyes turned from fear to lust as she opened her mouth and allowed me to push her head down into my lap. Using my hands on her head, I guided the action, forcing my cock deep into her throat. She took it to the root with no hesitation.

I assumed that she had some serious oral skills in light of her proclamation about her love of sex, and I was right. She took me deep, with no signs that she was a novice deep throater.

I fucked her throat steadily for a minute or so, then released my grip and allowed her to come up for air. Rose used that opportunity to lick and kiss my head and shaft, then lower herself to get at my balls and she licked and sucked them for a minute or so as well, then back to my shaft, her gorgeous green eyes never leaving mine as she made love to my cock with her lips and tongue. It was heavenly.

"Tell me what you're thinking as you suck my cock," I ordered her.

"I love sucking this big, thick gorgeous cock," she answered. "Your pre-cum tastes so sweet, and I love sucking my pussy juice off of your cock. I want a big load of cum in my mouth so I can taste how delicious you are."

She was good, and I was enjoying this immensely, her cock sucking skills evident from years of practice on her boyfriends. But I was ready to come and wanted to take charge.

I grabbed her hair again by the back of her head and pulled her off of me while I stood up. Looming large over her, I grabbed her head with both hands and steered her back to me, her mouth engulfing me again and taking me all the way to the base. I pummeled her face and throat, and she moaned in pleasure as I dominated her.

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