Siblings with benefits

"Megan your little brother needs you to go put your arm around him and tell him it'll be alright, he trusts you, so go ahead and sit with him. When your father comes home I'll keep him downstairs so don't get carried away, but stay with him for awhile okay?"

"Yeah?" I asked smiling a little. "You'll cover for me?"

"Of course, that's what Mom's are for."

"How are you going to keep Dad down there?"

Mom smirked at me and shrugged;

"Oh I'll think of something. I mean he does look good in that suit."

"Oh, gross." I said and was surprised to hear myself laugh.

"Now go be a good big sister and cheer your little brother up."

I opened Mark's door and entered quietly. Mark was sitting on the side of the bed with his head in his hands. He didn't look up as I closed the door behind me. I had put on the long red and black silk robe that I knew was his favorite so it didn't look as if I was going in dressed skimpy again. Of course underneath the robe well... I mean mom did say to cheer him up after all. After watching him for a minute those thoughts began to subside as I realized Marks shoulders were shaking. My brother was crying. I immediately went over to him and sat down on the bed.

Mark looked up quickly and his eyes widened.

"Christ Megan! You shouldn't be here, I..." He shook his head. "Oh whatever, I'm fucked anyways."

"It's okay little brother, Mom told me to come see you."

"She did?"

There were tears on his cheeks and his eyes were so red it hurt me to look at them. Smiling reassuringly I nodded;

"She told me to come cheer you up."

I put my arm around his shoulders and taking my hand gently wiped at the tears on his left cheek.

"Don't" He pulled away in embarrassment.

"Hey its okay Mark there's a lot to be upset about."

"So Denise knows you're in here?" Mark sighed then added; "She was really nice to me after Doug got finished yelling, told me she'd take care of it. That she believed us."

"She understands Mark." I took his hand. "She really does, she knows we need each other."

At that I hugged him close to me and he rested his head on my shoulder.

"Did you sleep at all little brother?"

Mark shook his head into my shoulder. I felt bad as he and desperately needed rest but I would be lying if I said a part of me wasn't happy that Krissy hadn't been able to give him what he needed, that his big sister was the only one who could truly take care of him. Well we had some time and at this point it might be the only thing that could settle my brother down, and mom did say she'd stay downstairs. I pulled away from Mark and standing up, untied the robe and opened it, showing Mark I was wearing nothing underneath.

"Are you crazy?"

"Mom won't come up Mark, now come here and get what you need."

Mark shook his head.

"No Meg, we can't we just can't."

I frowned I didn't like being turned down. Bad enough I would already be getting Krissy's seconds but for him to refuse me? Then again Mark was scared and trying to protect the two of us from yet another mistake. With a sigh I closed the robe and sat back down next to him.

"Okay Mark maybe you're right. Just come here then."

Mark nodded and went to put his arms around me. As he did I leaned forward and kissed him. I meant for it to be a quick one, but as I started to pull back I swore I could smell... grabbing the back of his head I kissed him again slower letting my lips caress his and as I did I breathed in.

I could distinctly smell Krissy on his face and his lips had a very familiar taste to them, not quite the same as when I kissed him after he went down on me but close, hers was stronger and surprisingly I wanted more. I kissed him again harder my tongue pushing into his mouth. Mark groaned and I could feel him try to push me away but I was holding onto his hair. After a few seconds I felt his body slump as if in surrender and he opened his mouth to allow his sister's tongue to slide in. I was instantly wet, as swirling my tongue in and out of my brother's mouth and across his lips, all I could taste was... I pulled away and looking at Mark whispered;

"Oh you naughty boy, you taste like your girlfriend's pussy."

"Oh sorry," Mark started. "I'll go wash..."

He was cut off by me practically attacking his lips. I kissed him hard and fast, both hands holding the sides of his face.

Like back in my room I didn't know where this was coming from but didn't care. Breaking off the kiss I stood up and locked his bedroom door. I knew it was crazy but had no fear of getting caught; I knew what I needed and was going to take it. Walking back I stood in front of Mark who was staring up at me; he looked nervous yet I could see the lust growing in his eyes. Letting the robe slip off my shoulders and drop to the floor I walked over to him and again grabbing the back of his head shoved his face into my left tit.

"Yeah that's right you suck on your sisters tit Mark. Just like you sucked on Krissy's"

Mark didn't need to be told again. He had quickly sucked my nipple into his mouth and was swirling his tongue around it. His left hand quickly found my other nipple.

"Oh yeah that's nice little brother, and you tried to say no to me."

I moaned as Mark's hand left my tit and finding my pussy pushed two fingers up inside. I started working my hips into his hand driving his fingers in and out. Mark's thumb pressed into my clit and started rubbing it in slow circles. I was breathing heavy and could already feel myself heading for an orgasm, which I needed; but not like this.

I pulled Mark's face from my nipple and stepping back so that his hand slid from my pussy I pushed his shoulders shoving him onto his back on the bed. Quickly climbing on top of him I put my knees on his shoulders, pinning them to the bed and shoved my pussy into his face. Bracing my hands against the wall I started grinding my hips, rubbing my pussy into my brother's flickering tongue.

"Oh yeah Mark? You like your nasty sister riding your face? You like sucking her pussy?"

Mark moaned into my pussy, then getting his hands on my ass spread my cheeks and drove his tongue into my ass. I let out a muffled squeal and stayed there bouncing up and down on his rigid tongue.

"Oh oh." I moaned damn that felt good.

"Oh you naught boy," I breathed out. "Look at you; tongue fucking your sister's ass. Bet you don't do that to Krissy do you?"

Mark's reply was to remove his tongue from my ass, slide it back to my clit, then just as I started to rock back and forth again he shoved one of his fingers where his tongue had been. I bit my lip so I wouldn't cry out. He had pushed his finger all the way in, deeper than he had ever before.

After taking a minute to get used to it I started moving my hips up and down on it. His finger hurt a little but at the same time felt so fucking good I started bouncing harder. Mark took his tongue from my clit and pushed it into my pussy. I started riding his face harder fighting to keep myself from squealing loudly.

As Mark's tongue found my clit again I started sliding back and forth so that his tongue was working my entire pussy, each time he hit my clit I ground my hips into his face even harder. Removing my hands from the wall I continued to ride my brother's face as my fingers found my nipples and started playing with them. Oh you nasty fucking girl I thought as I drove my pussy into Mark's tongue and his finger plunged in and out of my ass. I could feel myself getting ready to cum and found myself trying to hold it back, this felt so good I didn't want it to end.

At that moment I looked down at Mark between my legs, the sight of my brothers entire face glistening with my pussy was more than I could bear. I whimpered again and giving both my nipples a hard twist sent myself over the edge. Even with biting my lip a long loud squeal escaped me, especially since the violent twitching of my hips were driving Mark's finger even deeper into my ass. I reached down and grabbing a pillow put it against the wall and burying my face into it opened my mouth and let out a long drawn out wail of pleasure. Gradually my hips slowed as did my breathing and moaning, with an effort I swung my leg over Mark's head and sat panting on the side of the bed.

Mark was gasping as well having almost been smothered to death by his big sister's pussy. Try explaining that one to the folks. I laughed out loud and Mark looked at me as if I were nuts. I have to say all things considering I was in a damn fine mood whether it was the alcohol or the incredible orgasm that was responsible for it I didn't care all I knew was this nasty girl wasn't done yet. Leaning over I kissed Mark again.

His face was soaking wet from my pussy and after I finished the kiss I started licking around his lips and his cheek lapping up my own juices. I could no longer taste Krissy. However I knew of one place where I would be able to; I got up off the bed and onto my knees.

"Stand up little brother." I told him.

Mark stood and grabbing the waistband of his shorts I yanked them down. As his enormous cock sprang free I grabbed it and squeezed; enjoying the moan that escaped from my brother.

"Damn that's hard, and you've already fucked once haven't you, little brother?"

"Twice." Mark said softly.

"Ooooh." I cooed. "You fucked your little Krissy twice? Her poor little pussy must've been awfully sore from this huge cock."

I grabbed it with my other hand and started to slowly pump it. Damn, two hands around his cock and there was still a couple of inches left over. Mark groaned as I touched just the tip of my tongue to the tip and swirled his precum around the sensitive head. Now for what I had been waiting for; taking Mark's cock; I ran my face along the side of it and sniffed. Oh yes! I once again caught a whiff of Krissy's pussy. As Mark started to slowly move his hips in anticipation of my mouth I continued to rub his cock along my face savoring not only the smell of my brother's girlfriend, but the way it mingled with his own musky scent.

Finally unable to hold back any longer I put my mouth on my brother's cock and slowly worked the entire length of it down my throat.

"MMM" I groaned.

I could definitely taste Krissy. As Mark grabbed a handful of my long black hair I started to suck his cock in and out rapidly, my tongue was sliding along his shaft as I enjoyed the mixed taste of my brother and Krissy. Reaching down I stroked Mark's balls causing him to moan and start to fuck my mouth. I held my head still and turned my eyes up, looking my brother in the eye while he face fucked me. Mark started to go faster, but I put my hand on his hips to stop him.

Removing his cock from my mouth I quickly stood up and bent over the side of his bed. Mark got behind me and grabbing my hips thrust his huge prick deep inside of his big sister's incredibly wet pussy.

"Oh that's it little brother, you give your sister every inch of that big fucking cock of yours!"

Mark didn't have to be told twice. Holding my hips so I couldn't move he hammered away at me. My pussy was so wet it was making a sucking sound every time he thrust into me. As good as this felt however I told him to stop and dropping back on my knees looked him in the eye and said;

"Now let's see how the three of us taste."

I opened my mouth and devoured my brother's cock taking it all the way down until my lips touch the base of his shaft. I swirled my tongue around and went back up giving the tip a couple of good hard sucks. I really could taste all three of us! I began sucking Mark's cock like it would be the last time and who knew maybe it would be, well in this house anyways. Pushing that thought quickly out of my mind I went back to work on my brother's cock. Grabbing his hips I deep throated him once again and began sucking him from the tip all the way back to the base.

Because Mark had already cum a couple of times he wasn't close yet and I was loving being able to suck on him this hard and fast. Something tells me he didn't mind his sister's talented mouth working his huge prick either because he moaned out;

"Oh damn you're good at that sis."

I stopped long enough to look up and say;

"Best cocksucker you'll ever have little brother, don't you forget it." I paused and smiled at him.

"And by the way, Krissy and I taste damn good on you."

"You are a nasty girl." Mark said then moaned as I went back to work on his cock.

As I closed my eyes and continued to suck on him I dropped my hand down between my legs and started stroking my clit. I had an image in my mind of Mark fucking Krissy doggy style pounding away on her tight little pussy, her big brown eyes would be wide and that pretty little mouth of hers would be open letting out those little moans that I always heard through the door. At that point as much as I was enjoying blowing my brother I needed to get that cock, and hard.

Once again I stood up but this time lied on my back on the side of the bed and lifted my legs straight up. Mark stepped up; grabbing my ankles and holding my legs up and open slammed himself into me right up to his balls. I covered my mouth with my hand then quickly grabbed the pillow and turned my head into it. Mark was rearing back and fucking the shit out of me. Even after all that sucking he was nowhere near close to cumming and in no time I was squealing into the pillow. Mark closed my legs and shifting his grip got both my ankles with one hand and while still pounding away on my pussy reached down and found my clit with his thumb.

I grabbed my nipples, this time I didn't even waste time playing with them first, I pinched hard causing myself to yelp and as I continued to squeeze shook them back and forth. Mark was looking me in the eye the entire time and I swear he smiled at the yelp of pain I had let out. Squeezing my ankles tighter and muscles flexing Mark lifted his left arm taking my ass off the bed several inches as he did.

"Ohhhh damn." I moaned as my brother's cock started pounding in even deeper.

I pinched my already sore nipples even harder as I stared at Mark. My brother looked incredible, the muscles in his left arm were bulging as were the ones in his chest and his perfect six pack stomach was covered in sweat. My fingers sped up and my third orgasm in the last two hours was right around the corner. Apparently so was Mark's as he started gasping and letting out little moans with every hard thrust of his huge dick.

"Oh please not yet Mark!" I begged him. "Oh please just a little more! Oh please make your big sister cum again!"

Mark groaned and I could tell by the expression on his face he was desperately trying to hold off. Suddenly he put my legs against his chest and letting my ankles go grabbed the base of his cock with his hand squeezing it as he continued to pump me. He groaned as he held his cum back while trying to get me off. That did it. I lifted my hips up into his thrusting cock and held them there as my pussy started to contract around my brother's cock. I twisted my nipples hard and biting the pillow let loose a muffled wail that, had I not had the pillow in my face, would have woke the neighbors. Mark was sweating and groaning still holding himself back making sure his big sister came nice hard before he did. Damn I had trained him well I thought.

"Oh little brother you are soooo good to your sister!" I told him then smiling wickedly said;

"How about you whip that big cock out of my pussy and let me give you a treat?"

Knowing exactly what I meant Mark stepped back still squeezing his cock which was so swollen the head was turning purple. Instantly I sat up and sliding off the bed onto my knees opened my mouth wide and stuck my tongue out. With a groan that was more like a whimper Mark let his cock go and despite the fact he had already cum twice, a huge spurt of cum splashed onto my tongue and splattered across my lips. A second spurt went directly into my mouth. Reaching out I grabbed my brother's cock and pumping furiously was rewarded with another spurt that I had aimed down so it would hit my chest between my tits.

"Ohhh Megan," Mark moaned as he sank to his knees in front of me.

I waited for him to look at me before showing him my cum coated tongue and putting it back in my mouth swallowed and then opened it again to show him I had taken every drop. Just like a good big sister should I thought.

"Damn." Mark said simply.

Putting his hands on his knees Mark let his head drop as he panted for breath. I allowed myself a satisfied smile; it was something to wear out my normally insatiable little brother. Of course I guess I had some help from Krissy tonight, but in the end she couldn't fuck Mark anywhere near the way he needed it. Not like his nasty big sister could.

"Tired little brother?" I asked.

Mark nodded without raising his head. I stood up and after using one of Mark's shirts to wipe the cum off my chest, put my robe back on. Leaning over I kissed Mark on the top of the head and said;

"Come on little brother let's get you into bed."

Mark stood up slowly then immediately sat back onto the bed. I had never seen him this tired. Remembering the hotel I made him stand back up and slip a pair of sweat pants on then told him to lie down. Mark sat then looking up at me with half closed eyes whispered;

"Meg what am I going to..."

"Shhh." I said putting my finger to his lips. "You don't worry about a thing little brother. It's time to go to sleep."

"But," Mark started.

This time I silenced him with a kiss and as I did pushed his shoulder to get him to lie down. Mark didn't fight it, lying down on his side facing me. Breaking the kiss I pulled the sheet up to his waist and standing up went over to his nightstand to light the two small candles that were on it so the room wouldn't be dark.

"There you go little brother," I said leaning over and kissing his cheek. "You get some rest and don't worry, everything will be okay."

"You sure?" He asked quietly sounding like a little kid.

Fighting to keep my voice steady I told him;

"I promised you when you came here Mark that I would never let anything happen to you and I mean it."

Mark closed his eyes again and I got up to leave when he spoke again;

"Megan?"

"What is it Mark?"

"Will you... Will you stay with me until I fall asleep?"

How could I say no to that? I went back over and unlocked his bedroom door then returning to the bed sat on the edge of it.

"Lie on your stomach Mark." I told him.

Mark rolled over and I began lightly running the nails of my right hand across his back. Mark sighed and after a few minutes started making that adorable little cooing sound in his sleep. Over the last few days I had made several wrong moves and we had either gotten caught or barely dodged a bullet; tonight however the timing couldn't have been better. As I continued to rub Mark's back I heard a sound at the door. I didn't look up right away as the door opened afraid it was Dad. After a moment of silence I looked over to see mom standing in the doorway watching me.

With one last look at Mark sleeping peacefully I got up and walked over to the door. Mom stood aside as I left and closed the door behind us. As soon as she turned I gave her a hug.

"Thank you for letting me stay with him for awhile." I whispered in her ear.

"You're welcome hon." Mom answered then pulling away said;

"Now you need to get some sleep too Megan your eyes are as red as Mark's."

"Good night mom." I gave her a kiss and headed for my room.

"Megan?"

"Mom?"

"You did great in there hon, Mark's lucky to have a big sister like you to take care of him.