A Different Kind of Party
Copyright© 2025 by Fanlon
Chapter 9
Erotica Sex Story: Chapter 9 - Tom and Mandy dreamed about what it would be like to go to a swinger party. When they received an invitation, they were ecstatic. There was only one little problem: that invitation came from Tom’s little sister, Stephanie. They would discover far more from their new friends than they'd ever imagined.
Caution: This Erotica Sex Story contains strong sexual content, including Ma/Fa Mult Fiction Brother Sister Group Sex Swinging Exhibitionism Oral Sex Voyeurism
I was deep into a YouTube rabbit hole when Mandy came to bed. She looked a little flushed, which had me curious as I watched her slip out of her clothes. I looked at the clock on the nightstand, it wasn’t that late. I honestly thought those two would be up most of the night talking about parties and all the shenanigans they’d gotten up to last night. So, her slipping into bed with me this early was surprising.
“Hey sexy,” Mandy tried using her sexy purring voice, but it came out slightly slurred, which made me chuckle under my breath. Now I understood why her cheeks were tinged red.
“Hi,” I smiled, watching as she tried to slide gracefully under the covers with me, but somehow managed to get lost in the sheets and ended up on top of the sheet instead of under it. “Did you two have fun?”
“Why can’t I feel you under here!” Mandy, obviously frustrated, growled and yanked the comforter up, her arms holding it high enough so that she could see all the way to the foot of the bed. She could see her legs, and then the sheet covering my own. Her brow furrowed in confusion, and I lost it. I started laughing hard.
“Babe, let me help.” I grabbed the sheet that was confounding her from under her butt and yanked it down, which caused her to topple over.
“Hey!” Mandy yelped as she scrambled to stay on the bed and not fall all the way to the bedroom floor.
“Oh, come here, you big baby.”
“I’m not a baby,” Mandy pouted, but as soon as she saw my legs, she scurried in close to me, throwing a leg across mine and resting her head on my chest.
“Nope, definitely not a baby...” I wrapped my arm around my girlfriend and squeezed her tight against me.
“Mmm, you’re warm,” Mandy murmured, rocking her head up and down, trying to burrow her way deeper into my side.
“I take it you two finished off the bottle of wine?”
“I did. Steph um...” The reluctance to tell me what Steph did raised my hackles. I knew what was coming before Mandy even said it, and I wasn’t happy. “She had some scotch.”
“Mandy!” I snapped.
Stephanie was always trying to find a way to get into my little collection. Here’s the thing: I love scotch. It was something I learned to enjoy with my father and grandpa. Now that I had my own place, I wanted my own collection, but the shit was expensive. At least the good stuff, anyway. If she wanted to drink the cheap stuff, I was fine with that, but I didn’t keep any of that in the house.
There was more than one occasion where my sister and I got into it pretty good about me not sharing what I had with her. That’s why we started drinking wine as a trio when she came over for dinner. Which was also why I’d had that extra bottle. The scotch was for special occasions and celebrations, not casual drinking just because. Stephanie knew that really pissed me off.
“I’m sorry, she didn’t tell me that was what she was going to do before she did it.” Mandy lifted her head, looking up to see my eyes narrowed and my lips pursed angrily down at her. “I told her you were going to be mad.”
“I am mad,” I sighed. It wasn’t fair to take my anger out on Mandy; it wasn’t her fault my sister was the way she was. “Not you at you, though.”
“Promise?”
“I promise,” I bent down, kissed the top of her head, and gave her a reassuring squeeze.
“Does that mean...” Mandy’s soft voice asked as I felt her fingers sliding along the skin of my chest and slowly winding their way down my stomach until her warm, delicate fingers wrapped around my soft manhood.
My earlier complaints were set aside and forgotten once I felt those soft fingers wrapping around my shaft, which immediately started to react to her touch. She noticed the change right away, bringing her second hand in to join the first. Now she had one hand massaging my balls while her other toyed with my rapidly inflating shaft.
“Mmm, I love feeling you get hard in my hands.” Mandy shifted, pulling the covers down to rest on my shins, exposing my chest and torso. I kicked them off the rest of the way, removing any possible barrier that could keep her body and mine from touching. Mandy just watched and giggled at my flailing movements. “I wanted—Oh!”
I cut off whatever she was going to say, using my arm that was already around her to pull her face closer to my own. My other hand reached up, caressing the side of her face as I pulled her lips to mine and we kissed. Our tongues twirling in time with each other, in a practiced, delicate dance.
I slid my fingers through her hair and grabbed onto a fistful of her beautiful, thick locks.
“Unngh!” Mandy moaned into my mouth. She loved it when I pulled her hair. Not hard or anything like that, more just holding it tightly. The fervor in our kiss deepened, and her movements grew more frantic, insistent.
“Tom,” Mandy’s voice moaned passionately. “I need you, this—” She squeezed my hardness in her hand, making it clear what she was talking about. I knew what she wanted, but I loved how she showed me regardless. “I want your cock, and I want it right now.” It was my turn to grunt, and I gave a hint of a tug on her hair.
Mandy’s eyes flashed as she looked at me. Her lips pressed firmly into mine, her hand now stroking me in earnest and with an obvious purpose.
“Mmm, fuck that feels good” I said through gritted teeth.
The grip I had on her head released as the muscles in my core flexed and my body rose up, my hips coming up off the mattress, rocking in time with her hand as it slid on my cock. Freed, her eyes flashed, and she vaulted herself on top of me. Her weight landed across my upper thighs, her hands still jerking me.
“I can’t wait any longer. If you aren’t going to give it to me, then I’m going to fuck you!”
She leaned forward, arching her back as she lifted herself up on her knees. My hands moved to her hips, my fingers digging into the firm, smooth flesh of her ass. I couldn’t take my eyes off of her. The way she moved was a seduction all on its own when she was clothed. When she was nude, my god!
Her tits hung beautifully, full, and wonderful, and then I felt her hard nipples graze across the skin on my chest. Her nipples were hard, jutting proudly from her perfectly sculpted breasts. I shuddered at the sensation; it felt like a jolt of electricity ran up my spine and then raced down and pooled in my groin.
“Mmm,” I moaned again.
She smirked at me for a moment before her head bent down. Her hand reached back between her legs, angling my erection upwards as she brushed the head of my cock between those magical folds. The heat was intense, and she was soaking wet. Feeling the head of my cock on her most intimate parts, her body rose up, her head tilted back as if to stare at the ceiling, except her eyes were closed, and her bottom lip trapped between her teeth.
“You’re so hard,” Mandy said breathily, her hips rolling in small circles while her hand kept my cock in place.
My hands tightened on her ass in reply to her words as I thrust my cock upwards, forcing it harder against her. I wanted to bury myself inside of her, but I mistimed it, and the tip slid forward, running through her slippery cleft easily.
I took that moment to start up our usual playful bedroom banter. Something we both enjoyed and could get a little wild depending on how worked up we were. Tonight, Mandy’s really worked up, and I was going to be the beneficiary.
“I thought you said you were going to fuck me, not tease your pussy with my dick.” I started up our usual playful bedtime banter.
“Oh, I am!” Mandy growled.
“Then do it, unless you want me to call in someone else to help?” I was expecting a reaction, but the sudden fire in her eyes as they met mine was far greater than I had anticipated. “Oh, ho-ho.” My eyebrows rose nearly to my hairline in surprise. “Someone likes that idea!” Mandy let out a whimper, a sound I loved every time she made it. It was the sound of desire, need, pure lust. The sign that told me to keep going.
“I’m sure Jeremy would love to have another go at your tight pussy.” I said, letting my voice drop low. Letting it sound deep and gritty. The mention of his name caused Mandy to jerk. The need for me to enter her increased. “I could bring in someone else too, a different guy or girl,” I continued. “Someone you didn’t know. Have them come in behind you, wrapping their arms around you, cupping your tits, pinching your nipples while they kiss your neck and nibble at your ears.”
“Mmm, fuck!” Mandy gasped, tilting her head to the side as if she were envisioning that exact scene playing out in her mind. Mandy’s hips continued to move, and when I felt the head of my erection line up with her channel. I lifted my hips in one smooth motion and felt her pussy part as my first couple inches of my dick burrowed into her. Once there, Mandy didn’t mess around, dropping her weight atop of me, taking all of me, claiming me.
The moan that escaped her was intense as I bottomed out inside of her. She was so wet that I slid in easily, but she was tight, and her inner walls squeezed me so strongly that I was nearly overwhelmed by the myriad of hot, wet, tight, perfect sensations that flooded my senses all at once.
Animalist, male instincts took over, and I pulled back, drawing my dick a few inches out of her before slamming it back into her with as much force and aggression as I could manage from me back as both she and I got lost in our desperate need to fuck each other.
Mandy rode me for a few minutes, her moaning growing louder and louder as she went. We, both of us, got lost in what we were doing, and the feeling of it that neither of us kept our dirty talk going. That wasn’t all that surprising; it was actually pretty common. Those dirty scenarios were talked about during foreplay. Once we got truly going, we didn’t need them to make the sex hot.
The whole time she was on top of me, her palms were pressed against my chest, holding her upright as she worked her rolled and rocked her hips on top of me. There were certain ways she would move that would cause my cock to hit those special spots, and each time she did, her body would twitch.
It’s almost as if she lost her timing or coordination for a moment. Each time that happened, I would try to do it again, which really caused her to get louder. The more I hit those spots, the louder she got. It’s a wonder the neighbors hadn’t mentioned something about it before because there was little doubt they could hear her when she really got going, like now.
While her hands didn’t move while she worked, mine definitely did. They drifted from her ass to her tits as she rode me. While those perfect breasts were in my hands, I squeezed and rubbed their pliant fullness. I rolled and pinched her nipples between my fingers and occasionally would pull on them, just enough to make Mandy gasp and arch her back.
That’s when I would slide them down her sides before gripping her ass again, helping to guide her up and down on my dick.
“You love it when I’m on top,” Mandy said, her voice husky and slightly out of breath.
Her bringing it up was a bit of a shock. Like I said, we don’t talk all that much once we get going.
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