How I Became Big Sister’s Sex Slave

It was as they switched positions that I made my crucial mistake. I was so caught up in the action going on in front of me that I forgot that I was only partially hidden by the bedroom door. As Karen swung around and impaled her wet pussy on Blondie’s hard cock, she was facing directly toward the doorway. For just a moment, our eyes locked. She got this huge grin on her face and, still staring directly at me , she shoved herself down and took Blondie’s entire cock deep into herself in one motion. Fuck! I was caught!

I quickly ducked back completely behind the door, but I knew it was far too late for that. As I stood there, torn between shock and incredible feelings of lust, I heard Karen say, “Mmmm, yeah, now shove your big dick up my tight little asshole! Yeah, fuck both my holes!” This pushed me over the edge. I couldn’t take anymore, my cock was so hard I was afraid I was gonna cum in my jeans in another second. I rushed to my room, shutting the door behind me as quietly as I could, I ripped off my clothes in a frenzy and, lying down on the bed completely naked jacked my rock hard prick as I continued to listen to my sister getting fucked just down the hall:

“Oh yeah, uhhh, that feels so good, so full! Harder! unnh!”

“Dude, her ass is so fuckin’ tight! Feels great!”

Long moments of panting and wet sucking sounds. “Oh, man, I can’t last much longer, I’m gonna nut!”

“Me too, shit, it’s too fuckin’ good. Uuuunh, fuck, I’m gonna cum!!”

“Yeah, fuckin cum inside me! Shoot that shit deep in my ass and pussy! Do it!”

“MMMM, UNNHHH! Yeah, fuck!!”

For a long while everything was quiet except for the sounds of harsh panting and low, ragged breathing. My hand was a blur on my cock by this time, and I felt ready to explode. I froze as I heard the sound of voices in the hallway:

“Shit Karen, that was awesome! Thanks a lot!”

“Yeah, thanks, that totally rocked!”

“Anytime guys. You should come over more often!” The sound of my sister’s laughter. “You know we will now for sure! We’ll call soon. I wanna get a chance at your sweet ass next time!”

“No problem, whenever you want, Gary.” Again, her soft chuckle.

“Well, we gotta take off, practice this afternoon.”

“K, see ya later. Call me.”

“You know it!”

Then the fading sound of footsteps on the stairs, the slamming of the front door, and they were gone. Man, I just had to bust a nut. I resumed jacking at a frantic pace. Yeah, so close, I know I’m gonna shoot a huge load, almost there. . .

My bedroom door swung open. Karen stood in the doorway, naked, her large nipples rock hard, a slight sheen of perspiration glistening all over her body and a mixture of cum and her own pussy juices running down the inside of her legs. “Jesus, Karen, what the hell are you doing!?!” I grabbed frantically for my blankets and threw them over my lower half. It was a somewhat useless gesture, though, since my cock made a tent out of those blankets in a major way.

She looked at me with an arrogant little smirk on her face. “Did you like it?”

“What?!? Wadda you mean?” This has to be a dream, I thought to myself. This can’t really be happening. This hot-ass slut goddess standing in my bedroom doorway, the picture of every teen male’s fantasy, and she’s my fucking sister!

“Did you like it?”

“Shit Karen, this is too–”

She stepped up beside the bed and with a single motion ripped the blanket away from me, leaving my exposed and rigid manhood sticking straight up. Karen looked at me and chuckled. “Yeah, you liked it. You loved watching your big sister get stuffed full of hard cock. You loved watching me suck dick and get plowed in the ass, didn’t you, Brian?” At this point I was in such shock that all I could do was make strangled noises in the back of my throat and gaze at her helplessly. My raging hard on said it all, however.

Karen slowly swung her leg over the side of the bed and squatted directly over my face, her dripping pussy inches from my mouth. “Be a good brother and lick my pussy and ass clean, Brian, suck my cunt and make me cum all over your face. Lick me!” She shoved he pussy against my open mouth, grinding down on me, smearing a mixture of cum and sweet pussy juice all over my face.

Part of me knew that this was wrong, that incest was wrong, but by this point I was so crazed with lust that I would do anything. Reaching up, I grasped Karen’s hips and pulled her down even farther until she was almost smothering me with her beautiful pussy. I licked and sucked every inch of her hole, tasting her, exploring the folds of her cunt lips with the tip of my tongue, tongue fucking her, sticking my tongue as deeply inside her as I could, tasting the sweet tang of her own juices mingled with the faintly salty flavor of the spunk that was dripping from her holes.

“Oh yeah, little bro, just like that, clean my pussy real good. I knew you wanted this.” She ground her crotch against my face hard as I continued to lap, sucking all of her juices into my mouth, tasting the core of her as I flicked my tongue against her swollen clit as hard as I could. “Oh shit, oh fuck yeah bro! That’s it, make your big sister cum!!” Karen squealed and smashed her crotch against my face as she came, squirting hot sticky pussy juices all over my face and open mouth.

“Oh yeah, Brian, that was really nice. Clean up my asshole now and you’ll get your reward.” I obeyed eagerly, tonguing her beautiful tight butthole, lapping all around it, plunging the tip of my tongue deep inside, sucking out all of the jizz that had been shot into her and gulping it down.

“Mmmmm, that feels so good Brian, you nasty little boy, sucking cum out of your big sister’s asshole,” Karen moaned. “That’s it, stick your tongue in real deep, make sure you get it all. ” After awhile Karen stood up and smiled at me. “You did a real good job, little bro. You’ve earned your reward. Ok, go ahead and spread your legs wide apart.” I did so and Karen crawled between my legs. I gasped with pleasure as I felt Karen’s warm hand close around my dick and begin slowly pumping up and down. “Mmmmh, doesn’t that feel good Brian? You like the feeling of your big sister’s hand stroking your hard cock? Do you?”

“Yes, yes!” I stammered.

“Yeah, I thought so. Then you’re gonna love this.” Karen ran the tip of her tongue all around the head of my cock, licking at the piss slit and tasting the pre-cum that was flowing out of me as she continued to slowly pump up and down with her hand.

I moaned deeply and arched my back. “Ohhh, God, Karen that feels so good!!”

Karen glanced up at me again with that arrogant smirk on her face. “What do you want little brother? Do you want to cum? Do you want to feel my lips around your cock as you shoot your load into my mouth?”

Weakly I gasped out, “Yes.”

She smirked at me again, her hand wrapped tightly around my now pulsing dick, her mouth inches from my engorged cockhead. “Beg for it, bro. I wanna hear you beg your big sister to suck your cock.”

I couldn’t help myself. “Please Karen, please, I’m begging for it, please suck my dick, make me cum.”

She chuckled. “Good boy.” I gasped as I felt the warm wetness of her lips engulfing the head of my cock, moving down my shaft, massaging it with her tongue, slowly taking more and more until my cock was buried in the wet heat of her throat and my sister’s nose was mashed against my pubes. She slowly and gently squeezed my balls with one hand as she slurped on my cock, deepthroating it and then releasing, sucking only the head, moving down slowly and teasingly. It felt so incredible, and I knew I couldn’t last much longer. Looking down at my sister’s head bobbing up and down on my hard shaft I felt my ball sac tighten and my toes begin to curl.

“Oh, shit, yeah, oh god, Karen, I’m gonna cum!!!” Karen took my cock deep into her throat, swallowing reflexively as I shot blast after blast of hot cum into her mouth. Finally I lay back, panting for breath, my eyes half closed in delirious oblivion. My sister crawled slowly up my prone body, dragging her hardened nipples against my chest, sliding her beautiful tits against me. Our lips met in a long, delicious kiss, and as Karen’s tongue slid into my mouth I tasted the salty bitter flavor of my own cum.

“Did that feel good, Brian?”

“Oh, shit, Karen, that was the best orgasm I’ve ever had!”

She smiled. “Yeah, well it sure as hell won’t be the last one. We’ve got all summer, and I have definite plans for you, little brother.”

I looked up at her with a puzzled expression. “What do you mean?”

She just giggled and waggled her eyebrows at me. “If you’re a good boy, maybe you’ll find out.”

She slid off of me and stood up. “Stay right here, don’t move, I’ll be back in a second.” Watching my sister’s perfectly tight, round little ass bounce as she walked out of the room, I felt my cock stir and come to life again, stiffening in appreciation of the sight. I lay there in a daze, unable to believe what had just happened. After a few minutes, Karen came back holding a couple of lengths of kitchen twine in her hand and smiling wickedly.

“Woah, wait a minute, what are gonna do with that?” I asked.

Karen just laughed. “Don’t worry Brian, I promise, you’ll love this game.”

Before I could quite register what was going on, my sister had grasped both my hands and tied them securely to either side of the headboard bedposts. I lay there on my back, hands lashed tightly above my head, helpless and under my sister’s complete control. my cock throbbed with eager anticipation even as in another, more rational part of my mind I was a bit scared.

Karen reached down and squeezed my erection lightly. “Hmmm, it looks like you missed me while I was gone.” Then she glanced up at me. “You look good this way Brian, bondage agrees with you.” She crawled up my body until she straddled my chest, her beautiful, firm breasts swaying inches from my face. “Oooh, Brian, when you ate me out it made me sooo wet, ” she whispered in my ear.

She wiggled two fingers into her wet pussy and then slowly, seductively swirled her fingertips around her hardened nipples, smearing them with her own juices. “My nipples are so hard, Brian. Do you like my tits? Do you want to suck them?” She continued to knead and caress those firm mounds now only inches from my face, tweaking her nipples, tugging on them.