My Sisters Sizzling Sex Session Caught My Attention in the Most Unlikely Way

When Tides Quickly Turn

bySociallyxxDistorted©

I rolled over in the bed, the sound of moaning gradually waking me up out of my sleep. I leaned over and looked at the clock, rubbing the sleep out of my eyes. It was almost 3 a.m. and my first inclination was Steff made it home, apparently with her boyfriend. My sister was anything but reclusive about anything, including her sexual appetite. Even though she was 8 years older than me, she still carried herself, not to mention her appearance, as if she were 21. Not that I minded. She still had an amazing body, even in her late 30's; firm C cup tits, a gorgeous ass, and tall lengthy legs. She was always promiscuous, even now, and had the sex drive of a horny 20 year old female; never holding on to any one boyfriend for any length of time.

I leaned over the side of the bed, adjusting my boxers as I recognized the moans instantly; or should I say my cock recognized them. After all, those moans had vibrated all over it on more than one occasion. Without any further encouragement, my cock began tenting against them, throbbing gently under the thin material. I swung my feet over the edge of the day bed and stretched. I could hear faint whispering as I slowly made my way across the loft, the lighting almost non-existent. From my vantage point I could see the living room perfectly. Although there were no lights on, the TV cast a faint glow across the bottom floor. My eyes bypassed my sister's young boyfriend leaning back against the couch and immediately locked on her. Although her boyfriend's back was to me I could see her on her knees, her hands rubbing his thighs as her lips worked their way up and down his cock. The sight alone could have made me cum. I could hear his moans and didn't have to wonder if she was doing a good job or not; I knew.

He leaned his head back on the couch and closed his eyes as she worked his cock endlessly, letting his cock slip from her mouth and running the flat of her tongue from the base to the tip, then sliding it back down into her throat.

His hands reached down and gripped her hair. "Damn I never get tired of you sucking my cock Steff." Her moans vibrated through his cock. "Are you sure your brother's not home?"

That snapped me out of my dazed state. I listened intently, waiting for her response. "Nope," she said breathlessly. "He's staying at a friend's house. We have the whole place to ourselves."

"Did I just hear that right?" I said to myself. "She knows I'm up here sleeping." I couldn't believe what I just heard. My cock jumped subconsciously in my boxers, working its way out of the opening.

"Just lay your head back baby and close your eyes." As he leaned back and closed his eyes, she gripped his hips and slid his ass forward, almost giving me an unobstructed view.

I had to admit, my sister picked her boyfriend's well. This current one was young, like the others, maybe 20 or 21. He was tall and well built in both ways, the latter being a long thick cock, currently glistening from my sister's saliva, that rested against his tight stomach. The more I stared the more I wondered if I was more turned on by this young stud and his beautiful cock or by my sister sucking him. I rationed it was a little bit of both.

She slid her hands up his muscular abs and up to his chest as she licked up his hard cock slowly, flicking her tongue at the underside of the head then placing her lips on the soft underside, kissing and sucking softly until she enveloped the head into her mouth.

"Gosh she fucking socks cock good," I said to myself. I wrapped my hand around my cock, the heat emanating in my hand, as I slowly began stroking it slowly. Precum dripped instantly from the head, forming a small pool at my feet. Then, to my amazement, she let his cock slip from her wet lips and looked up towards the loft. "Oh fuck," was the first thing that came to my mind. A smile formed from the corner of her mouth as she kept her eyes locked on the loft. Slowly she slid her hand down and began stroking his cock slowly, flicking her tongue gently against the head as precum poured from his cock. Rubbing the head across her lips she lowered her mouth down on his cock and into her throat as he raised his hips up in the air, gripping her hair and moaning loudly.

The sight of her lips working their magic on his cock were almost too much for me to resist as the precum flowed like a fountain from the head of my own cock. She lifted her mouth back off of his cock and looked back up to the loft and bit her lip, "I want you to cum inside my mouth baby."

"Oh my gosh," I mouthed wordlessly to myself, unaware that I had moved closer to the railing.

Her boyfriend moaned loudly, his eyes still closed. "Yes baby, make me cum please!" She was still looking up at me and I knew it.

"How bad do you want me to make your cock cum baby? Tell me." There was no doubt in my mind now, she was talking to me. Damn how I wanted to cum all over her tongue. It was as if my thoughts were echoing through her boyfriend as he pleaded with her, "Please Steff, I can't hold on any longer!"

Immediately she pumped his cock faster and buried her mouth down on his long hard shaft, sucking and moaning. Their combined sounds filled my ears and sent tingling sensations throughout my body as I began stroking my own cock faster and harder.

In one motion she slowly lifted herself from her knees; resting one hand on his thigh while gripping his cock with other, bobbing her head up and down feverishly. Bending over at the waist, she lifted her ass up in the air as she spread her legs, slowly sliding her hand from his thigh and moved it between her pussy lips, fingering herself. I could hear the wetness from her pussy even from where I was standing.

"Oh fuck," I said to myself silently as images of what she looked like from behind filled my head.

By the quickening of his breath I knew he was about to cum. I knew I wasn't going to last much longer either as I felt the familiar sensations begin to build in my balls and my cock. All I could think of was how bad I wanted to cum all over her face while another part of me wanted to be behind her sexy ass and pounding her pussy while she was making him cum.

"Oh fuck Steff I'm gonna cum!"

She lifted her mouth off of his glistening cock and continued stroking him fast. My eyes locked on his cock as it began to explode from the head as wave after wave of hot cum hit against her open mouth and tongue as she feverishly licked at the head. I had to admit, the amount of cum shooting from his cock surprised me and turned me on almost as much as what my sister was doing to it. I bit down on my lip as my own orgasm hit me hard, buckling my knees, as cum exploded from cock. Holding onto the railing I no longer cared if my sister saw me or not. My hand stroked furiously on my cock as she continued her assault on his; alternating between sucking and licking. She began to moan loudly as she looked up at me and our eyes locked; her fingers penetrating her slippery pussy fast as she began to cum. She slammed her mouth down on him and deep throated him in one motion, her moans stifled against his beautiful cock. Unable to contain the amount of cum pouring from him, she tried her best to swallow him as cum began to drip from the sides of her mouth along the shaft while I continued milking my own cock. My heart pounded in my chest as I stood there transfixed, watching her.

Their moans began to subside as she slid her mouth slowly up his cock, letting it slip from her wet lips. Quickly she brought her fingers to her lips and began licking the cum from her fingers, her eyes gazing up to me enticingly.

"Fuck Steff you've never sucked me like that before," he exclaimed.

She laughed lightly as a grin broke across her face, "Let's just say I was more inspired this time." I hadn't realized I was still stroking my cock lightly. Quickly I slid my cock back into my boxers and quietly cleaned up the mess I left on the floor and railing and headed back towards my bed. I still couldn't believe what I saw; the mental image of her sucking his cock, the way cum erupted all over her lips and tongue, the way she was bent over fingering her pussy while sucking him. "Fuck I wish she was sucking my cock like that," I said to myself. Quietly I slipped on my headphones as the images flashed through my head and before I knew it, I was out.

I woke up the next morning, the aroma of coffee lingering in the air and stumbled out of bed, wondering if what happened last night was a dream or not. I soon realized it wasn't as I looked at the balcony and saw the remnants of my orgasm on part of the railing. Quickly I grabbed a shirt from the floor and wiped, not realizing Steff was sitting on the couch.

She looked up and smiled, "Morning Pat! Did you sleep well?"

"That's a huge understatement," I thought to myself. "Yeah, I slept great actually."

"I think you missed a spot on the railing," she replied with a hint of playfulness as she took a sip from her cup.

My face began to redden as the words fumbled from my mouth. "Oh, ummm, yeah I guess I ...."

She quickly interjected, saving me from trying to cover up my excuse. "Did you like what you saw last night?"

True to form, she was blunt and direct and enjoyed being in control. "Oh that?" I stammered. "You guys woke me up."

She crossed her feet on the coffee table, moving her manicured toes back and forth. A tingle raced through my cock as I watched her feet. I could sense the mood changing, almost as if she was sizing up her prey. The corner of her eyebrow rose, "From what I saw, you weren't the only one I woke up."

My cock twitched in my boxers submissively. I laughed nervously, "Oh, sorry about that. I got a little worked up hearing you two and one thing kind of lead to another."

"Oh don't be sorry Patrick. It was kinda hot," she added matter-of-factly. "You know how much of an exhibitionist I am. I was tipsy last night and the b-f got me so horny, I didn't care if you heard or not," she laughed. "It seems you were more than a little turned on though. From what I saw you came pretty hard," she smiled seductively.

"Oh," I laughed. "Yeah I must have been hornier than I thought."

"Did you like what you saw?"

"Like" was a serious understatement. I had never seen anyone suck a cock the way she did. She made it an art form. "It was fucking hot actually," was all I could muster.

She laughed lightly and set her coffee cup on

Explore my other stories

THE END