Siblings with benefits

"Why don't you roll over and let you nasty big sister really say good morning to you."

Mark didn't have to be told twice, rolling over onto his back and kicking the sheet off to expose his incredible cock, which was already standing at attention in anticipation of his big sister's very eager mouth. I sat up and, after first bending over to give Mark a long passionate kiss, put one of my hands over to the other side of him and began to slide my tits back and forth across his face, keeping them just low enough that my nipples would graze his outstretched tongue, but high enough that he couldn't get them in his mouth.

"Don't tease sis!" Mark groaned as he tried to put his head up and catch my right nipple.

"Oh trust me Mark, your big sister is no tease."

With that I turned around on the bed and, getting on my hands and knees, grabbed Mark's throbbing cock in my hand and started slowly stroking it. Mark gasped and a second later I did as well in surprised delight as Mark had immediately slipped two fingers into my sopping wet pussy. I groaned again as a moment later his thumb found my swollen clit and started gently rubbing it in slow circles.

"Oh, you are soooo good to your big sister." I moaned.

Well one good turn deserved another so with no further hesitation I lowered my head down and, taking Mark's dripping prick into my mouth, began with deliberate slowness to work its amazing length inch by inch down into my mouth.

"Oh goddamn that feels good!" Mark whispered as my mouth reached the base of his shaft.

Mark groaned loudly as keeping his cock buried in my hot mouth I reached around and once again started massaging his balls.

"Hmmm mmm." I encouraged as Mark started slowly pumping his hips up into my face.

Pulling my mouth off of his cock I told him;

"Go ahead little brother; fuck your nasty girl's throat."

With that I put my mouth over his cock and held it still. Taking his cue Mark started thrusting his hips higher and faster than he had been, causing his cock to slide in and out of my soft full lips and into my more than willing mouth. I let out a soft moan, as between the sensation of Mark's hard cock sliding down my throat and his thumb working my clit, it was quickly becoming a very good morning.

"Damn your pussy looks hot sis." Mark breathed out.

"Yeah little brother," I asked popping his cock back out of my mouth. "Then why don't you get a closer look!"

Sitting up with my back to Mark, I quickly swung my right leg across his chest so I was straddling him and, after sliding my wet pussy back across his stomach, worked my legs under his arms and, bending, let my weight go onto his chest so that my pussy was directly into his face. I let out a loud yelp of pleasure as Mark instantly plunged his tongue into my already slippery slit. Mark pumped his tongue in and out rapidly and I let out another moan, which was drowned out by his as I had grabbed his cock and started rapidly jerking it off.

I once again took Mark's huge prick into my mouth, but rather than letting him fuck my mouth again I began sucking him up and down, taking him all the way with each long slurp of my talented mouth. I moaned around his cock as Mark's tongue found my clit and started swirling around it. A moment later I pulled his cock out of my mouth and squealed as he pushed his tongue into my tight little ass.

"Oh look at you!" I exclaimed. "Oh you naughty boy, tonguing your sister's ass."

Mark's tongue dipped back to my clit, but as soon as it left my ass it was replaced with one of his fingers, causing me to let out a long groan as in that position his finger slid deep inside of the one spot I swore I would never let anything ever go. But just as I held my brother's complete trust, he had mine and I knew he would never go too far. Turning my head I began to suck his cock again, but this time I was neither playing nor teasing, this time I was going fast and hard, deep throating his huge cock then immediately slurping all the way back up to the tip.

My brother let out one of those adorable little whimpers as his big sister continued to blow him like it was a competition. In a way it was, as between his finger in my ass and his sucking my clit in and out of his mouth I could feel my thighs beginning to tremble and the first hint of an orgasm building deep in my loins. I started rocking my hips back and forth against my brother's face as I started to whimper around his cock, telling him I was getting close.

Mark's grabbed the back of my head and started pulling my face up and down by my hair while slamming his cock in and out of my throat. I squealed around his cock as him brutally fucking my face was getting me even closer to cumming. Taking my hand I started tickling Mark's balls lightly with my nails. I was rewarded with another of those cute little whimpers and Mark began gasping with each thrust into his big sister's mouth. Mark's hand left the back of my head and, after sliding it between our bodies, found my left nipple and immediately gave it a hard twist.

I went off like a rocket; squealing loudly around Mark's cock and bucking my hips wildly back into his face as wave after wave of intense pleasure flowed through my body. Making it even better was, at my first squeal my brother's cock erupted, sending a huge load of hot cum shooting into his nasty sister's mouth. Mark's cock continued to twitch, sending spurt after spurt of sticky cum into my mouth, there was so much that I could feel some of it drooling out of the corners of my mouth and down his shaft.

Mark moaned loudly as being the good big sister that I was I slurped down the length of his cock, cleaning up every last drop of his delicious cum. I wasn't the only one that had gotten a mouthful either as with one final gasp and spasm of my hips I felt my pussy gush into my brother's face. Mark moaned again and, as I had done, I could feel his tongue flicking around my pussy, lapping up his big sister's sweet nectar.

I removed Mark's dripping cock from my mouth and, with a loud sigh, let my head rest on his sweaty thigh. Mark gently slid his finger from my ass and, after giving it a playful slap that got a surprised yelp from me, let his own body relax, slumping back into the bed. I was still lying on top of him and I could feel the beating if his heart against my stomach. With a groan I rolled off of him and somehow found the strength to sit up and look at him.

"I repeat," I said smiling. "Good morning little brother!"

"Damn." Mark said, his eyes closed.

We were silent for a couple of minutes and I wondered if he wanted to go back to sleep when his eyes popped open and with a big smile he looked at me and said;

"You know sis, we have one more thing to break in."

"What?" I asked.

Mark's answer was to roll out of bed and before I could react, lean over and, grabbing me around the shoulders and under my knees, swung me up into his strong arms as if I were weightless. I laughed like a little kid and as always Mark flashed me that beautiful little kid smile of his own and said;

"I love that laugh sis."

And I love you I thought to myself, but managed another smile and finished our little ritual;

"And I love that smile Mark."

Mark winked at me then carried me into the bathroom. Of course, I thought happily; the shower. The shower in the bathroom wasn't big, not much more than a stand up, but that was fine with us. The shower had always been my all time favorite and to me, the closer I was to my brother's wet soapy flesh the better. We stayed and played for well over a half hour; taking turns soaping and rinsing each other off and taking our time shampooing the other's hair.

Of course what would be the point of getting clean together if we didn't end up getting dirty again? When Mark had finished rinsing my hair I dropped to my knees and, taking his wet and already hard cock into my mouth, took my time sucking him in nice and slow as his hands ran through my long wet hair. Mark's hands left my hair to reach down and start gently toying with my nipples. I moaned around his cock then, unable to wait anymore, stood up and, turning around, and placing my hands against the tiled wall, pointed my ass at Mark.

Mark stepped right up to me and, after grabbing my hips, angled his huge dick up and into my squeaky clean pussy. We both let out soft moans as Mark started slowly pumping himself in and out of my pussy, which was now wet from much more than just the water. I closed my eyes and sighed in pleasure, the hot water, the steam and of course my brother's incredible cock pounding into me, could it get any better than this? It could be all the time, was the thought that came to mind, but I quickly pushed it away. Looking over my shoulder I told Mark;

"Come on little brother! I'm not going to break, go ahead and fuck your big sister, give it to her the way you know she wants it!"

Mark gave me a nasty little smirk and, squeezing my hips tightly, reared back and began slamming the shit out of me. I cried out as Mark drove his massive cock into my tight little pussy, then moaned in pleasure as, letting go of my left hip, Mark's hand reached down and around to find my clit.

"Oh yeah! Oh little brother that is sooo nice!"

Mark's response was to somehow find a way to start fucking me even harder, his thumb blurred across my clit moving faster and faster to match the rhythm of his hips. I moaned and leaned further against the wall as I could feel my legs start to shake. Mark took his other hand from my hip and, with no warning, shoved a finger into my ass. That sent me over the edge, with a wail that echoed throughout the small shower, I began slamming my hips back into Mark's cock as my second orgasm of the morning poured through me.

As my pussy contracted around it, my brother's cock suddenly exploded, sending a river of hot cum deep up inside of me. I groaned and squealed as I bucked my hips and my legs threatened to give. All the while my brother continued to paint the inside of his sister's pussy with an enormous amount of cum. With a long shuddering moan Mark emptied the last of his cum into me and pulled out to lean against the shower wall.

With an effort I stood straight up and also leaned against the wall. Mark shut the water off and, stepping out, wrapped himself in a towel, then held one out for me. With a laugh I stepped into it and let him wrap it around me. Once he had wrapped me, Mark's arms stayed around my waist holding me from behind. Leaning in he kissed my neck and whispered in my ear;

"I'll never forget this sis, our first time here."

I put my head down and nodded so he wouldn't see me tear up.

A few minutes later we were sitting in his living room, I was on the couch dressed in a pair of jeans and a red sox t-shirt and Mark was sitting across from me in the armchair wearing just a pair of jeans. We were both smoking, sharing the ashtray on the coffee table and, as Mark took a long drag and sat back, I shook my head at how fucking sexy my brother was. His muscular chest and perfect six pack stomach, never mind those arms.

"So you want to go to breakfast?" He asked.

"Sure," I told him leaning forward to put out the cigarette. "But let me pay okay? I can't imagine what last night cost."

"No that's okay sis I..." Mark paused and picking up his wallet off the table looked in it. Grinning he said; "Okay maybe breakfast will be on you."

I laughed then Mark asked;

"So what do you want to do tonight?"

"Tonight?" I asked. "Aren't you working?"

Mark smiled.

"No that was the last of my surprise, I took tonight off and Mitch's is closed tomorrow. I cleared the whole weekend for us sis."

For us I thought. Leaning forward I picked up the pack and quickly lit another cigarette, what I wished I was picking up was a drink. The fact that there was a fully loaded bar downstairs had already occurred to me, but I would never ask my brother to do that. As I looked at Mark I realized that there could be no more stalling, I would have to act now.

"Well you know Mark I made plans for tonight."

"You did?"

"Yeah," I nodded. "I'm going to go out with Tommy tonight. We're going to go to dinner and from there..." I smirked. "Well hey who knows, he is pretty cute."

"Tommy?" Mark asked. "I thought you didn't want to, I mean you went out a few weeks ago and said..." "Yeah I know Mark." I began, hoping I would sound convincing. "But I was going through a tough time and wasn't sure." I smiled at him. "But someone helped me out with that and I feel much better about things now."

"You do?"

"I do Mark," I continued the lie. "And you know what Mark? Tommy's a nice guy, he's cute, he's sweet and he really seems like he likes me."

"Yeah?"

"Yeah Mark and best thing is, he's really laid back. I mean you know my problems and Tommy's not a grabby little kid or a macho jerk like Jack. When we went out he held my hand and gave me a kiss good night and that was it, no groping, no how about my place, he was sweet."

"Okay sis." Mark said although I could see he was disappointed. "If that's what you want then I don't want to stop you, I just wish I'd known, I wouldn't have taken the night off." He stopped then asked;

"You're sure your okay though? I mean. you kept saying you were getting really bad with guys."

"I'll be okay Mark." I said smiling reassuringly at him. "Besides like I said, Tommy's really nice, I don't think he'd ever be pushy with me."

At that I got up and, going over, sat on his lap.

"Better not be," Mark said as he put his arm around my waist. "I heard your little brother's pretty protective."

"No Mark," I said laughing. "The word on the street about you is you're fucking crazy, get it straight."

"Oh." Mark said doing his best to look offended. "That's not nice."

I laughed again, amazed at how good I was doing with this. Maybe I was doing the right thing after all. I wrapped my arm around Mark's shoulders and, after kissing his cheek, went for the other half of my plan.

"You know Mark," I began, swinging my legs all the way onto his lap and gently caressing his chest with my fingernails. "What you could do tonight is invite a certain smoking hot little redheaded bartender up here after she gets off."

"Cynthia?" Mark asked.

"Why not Mark? She's sweet, she's hot, and little brother?" I smiled at him. "She has wanted you for months."

"I don't know Meg..."

"Oh come on Mark, you haven't been with anyone since Krissy, well besides me anyways, so go for it." I shrugged.

"I mean you had your big sister in your new bed first, as it should be. But now you tell Cynthia that you're all moved in and ready for a little house warming party." I leaned over and whispered in his ear;

"She wants you bad Mark, she's told me, used to ask me to talk to you for her." I playfully nibbled his ear then added; "She'll do anything for you little brother, anything."

Mark nodded then began to smile.

"Cyn, is hot isn't she?"

"Oooh," I cooed. "Cyn, that's sexy Mark I like it." I grinned.

"You know she doesn't let anyone else call her that right?"

Mark's smile broadened and I continued.

"Tell you what little brother, it'll be like when you were with Krissy and I had someone, I'll have some fun with Tommy, you get a hell of a night with your hot little bartender, and how about I come over Monday to help you unpack and I'll spend the night?"

"Yeah?" Mark asked. "You'll come over again?"

"Of course!" I kissed him quickly on the lips. "Mark I am going to love staying over here! I promise I'll come over a couple of nights a week okay? We just can't all the time little brother, just like when we started." I paused. "No one can catch us up here, but we don't want to look to funny either Mark. I mean Tommy and Cynthia have been on us for awhile and we just keep pretending there's someone else, we need to watch out that's all."

"I guess you're right." Mark said nodding. Then looking at me said. "I'm sure Cyn will be fun, but you're always going to be my favorite sis." Before I could respond Mark gave me a long lingering kiss, during which every part of me wanted to call this whole thing off, to stay in his arms and tell him it's where I belonged. When the kiss finished however I simply looked at him and, smiling, said;

"That's right little brother, your big sister is the best pussy you'll ever have and don't you ever forget it."

For breakfast I took Mark out to T's which, although crowded, was worth the wait as it was a special place for the two of us. When my parents had first begun to talk to the social worker about Mark coming to live with us, we would pick him up at the group home for short visits. The first time had been a Saturday morning and we had come here, my parents had surprised me by getting their own table, letting us sit alone and get "reacquainted" as Mom had put it.

Since then I liked to come here with him once in awhile, as a reminder of our reunion. Like this morning breakfast was bittersweet; Mark was now excited about his upcoming night with Cynthia, and spent a good part of the meal talking about her and how sexy she was and how he couldn't wait to see what she'd be like. This was the sweet part I suppose, as he was showing no remorse over not spending tonight with his big sister. The bitter? Well that he wasn't sad about not being with me! I kept repeating the mantra of "it was what was best for us", but it was getting real old real quick.

I have to say I felt a sense of relief when Mark dropped me off back at home. I had asked him where he was going and he said the gym, and then added with a big smile back to "his place". I smiled and once again told him how proud I was of him. I was, however, glad he wasn't coming in, as at least with him gone for the day I could try to clear my head and stop feeling sorry for myself. On that note the first thing I did once I was home was go upstairs and call Tommy.

I didn't get an answer at his apartment so I tried his pager. Tommy called me back within five minutes and I asked him if his offer of anytime was still good. I have to say the genuine excitement in Tommy's voice as he told me that he would be thrilled to take me out did make me feel good. Tommy told me that it was good timing because he had just gotten invited to a great party on the east side and it didn't start until nine. so there was plenty of time for dinner.

I asked him to pick me up around seven and hung up feeling a little better about things. Maybe this really would be good for me; I had meant what I said to Mark, Tommy was really sweet and very laid back, which is what I needed. Not only that but at this point Tommy had been coming around for a couple of months and although we'd only gone out on one official date he had spent a lot of time at Mitch's with me, just drinking and talking.

One night I had been pretty down and had somehow gotten into talking about my past, not in graphic detail but enough that Tommy had a good idea of what I had gone through. He was sympathetic, and had made the comment that if I was ever to give him a chance then all "that stuff" as he put it, would be up to me. As far as he was concerned he liked me for me and anything else could wait.

That had made me feel really good, and had I not been in the middle of fantasizing about my brother being my boyfriend it might have gotten Tommy a piece of this nasty girl right then and there, as hearing a guy tell me I would be in charge had sent an immediate surge through my pussy. After all the only issue I had with sex with anyone besides my brother was wondering when I would get nervous or scared, if I was truly the one calling the shots so to speak, neither of those things could happen.

After I talked to Tommy I went downstairs and ran into Mom and Dad in the parlor. Mom immediately asked about last night and of course I had to go into more lies. Running into Ginny last night had taken away the simple story of a double date, so I told them that we were supposed to meet Mark's girlfriend and her friend at Donatello's, but when we got there the maître'd had a message that there was a problem and they couldn't make it. Mark and I were already there so we had dinner and had some fun dancing.