My girlfriend and I had been together for two years before she finally cheated. During those two years, Ash and I had a fantastic relationship and an active, if standard, sex life. Outside of the bedroom, I loved everything about her: personality, humor, the way she makes little noises when she stretches. Inside of the bedroom, I thought I loved everything about her.
I certainly loved her body: small and slim with boobs well-suited to her frame. Ash was very girl next door in her looks but that very much worked for me. The sex itself also very much worked for me. We did it in various positions, she went down on me semi-regularly, and Ash never once rebuked me when I was feeling in the mood. She wasn’t conservative but she wasn’t wild, and I never thought I wanted anything more than what I got… until one particular night six months before the incident.
We were back home after a few drinks out with some friends, one of whom had been recounting her first date with a guy from a few nights before. Erin had admitted to sleeping with that guy but still ended up going home with a random stranger shortly before we departed. Between the alcohol and Erin’s story, I was feeling a bit worked up and had a good buzz going. Ashley meanwhile was well past tipsy and near borderline drunk, her small build making her quite a lightweight.
“Have you ever done anything like that?” I asked on a whim. We were on the couch, having not even made it to the bedroom from Ashley’s wobbliness. My hand was underneath Ash’s skirt, fingers rubbing up and down her moist slit, her panties pushed to the side. “Had a one-night stand or went all the way on a first date?”
“Mmm… Only… Only twice,” Ashley moaned, growing wetter. “Once on a date and the other… someone I picked up at a club.”
I sank two fingers into her, making her gasp. Her answer shocked me. I never imagined Ashley doing something like that, much less doing something like that more than once. The thought of my innocent girlfriend acting so… slutty had my dick springing to attention.
“Why those two?” I asked, pumping my fingers into her.
“They were just so hot. I never… I never did anything like that but, oohhh.” Eyes clenched shut, Ashley squirmed around my invading digits. “And their cocks were so fucking big.”
My own cock was nearly bursting out of my pants, not only from learning about this side of Ash but also over the thought of my petite girlfriend taking two massive dicks.
Keeping the fingers of one hand inside of my girlfriend, the fingers on my other hand worked to undo my jeans and fish my achingly hard member free from my boxers. Yanking my fingers out of her, I lined up and slammed balls deep into Ashley in one thrust. She screamed in pleasure, tossing her head back and grasping and squeezing one of her breasts as I aggressively rocked in and out of her flooded cunt.
“Tell me about them,” I growled. “Tell me about how much of a slut you were for their big cocks.”
“The one on the date… he was so charming and, ungh, handsome,” Ashley panted, her legs wrapped around my lower back. “We had a few drinks and even though I’d only… had sex twice before and only with long-term boyfriends… oh god!… I knew I wanted to fuck him.” I slammed harder into her and she ground her hips against me. “I was only planning on giving him a handjob after a first date but when I saw how big and thick his dick was in my hand… I let him fuck me.”
“Fuck, that’s so hot,” I gasped. “What about… the other one?”
“Mmm… Night out during college. He was so hot. I danced with him and felt how big his cock was through his pants. It ran down to my fucking thigh.” Ashley was panting heavily. She was getting close to cumming and so was I. “We barely made it to his car… oh oh oh… before I spread my legs for him.”
I buried myself all the way inside of her and had the biggest orgasm of my life. Ashley came along with me, legs tightening around me, back arching, as she exploded, whether from the feeling of my dick inside of her or the memory of those other ones, I didn’t know and didn’t care. It was too lost in my own ecstasy.
The next morning, a hungover Ashley barely remembered any of the night before. I downplayed the conversation we had but in actuality, I couldn’t get it out of my head.
The thought of my innocent girlfriend, who it took me weeks before she even touched my dick, willingly spreading her legs for guys she just met, all because their cocks were so big… it turned me on like nothing else ever had. Over the next six months, I jacked off countless times to the idea of Ashley getting pounded and fucked raw by those guys. Eventually, it became the idea of Ashley getting fucked by any guy. Until it even spread into our regular sex lives, where I’d end up imagining I was watching her fucking a random big-dicked guy instead of me being the one fucking her.
Ashley acting like a slut for big dick became my obsession. It was just so unlike her, or so I had thought. Knowing she had something like that in her, Ashley with someone else turned into my biggest fantasy. It brought a whole new level to our sex lives but one that worked for me and didn’t work for her. I was too embarrassed to tell her about how much the thought of her fucking someone else turned me on, so I never brought it up. However, I got off so quickly to the idea that I often left her unfulfilled. I could tell she was becoming dissatisfied.
Everything came to a head during a party thrown by Erin. By the time Ashley and I arrived, the place was already packed with friends, friends of friends, and friends of friends of friends. Erin had gone all out, setting up a mini dance floor flanked by speakers blaring music, a gaming room where a few people sat around playing an MK tournament, a bar with tons of free-flowing drinks, and a balcony for chatting and smoking. As soon as we entered, both Ashley and I got roped into shots. I could tell it was going to be a wild night and Ashley was onboard for it if she was already taking a shot.
We mingled for a while, having a few drinks and sticking together, before Ashley wanted to dance and I wanted to go to the game room. More than a little drunk already, Ashley told me we could separate and she’d just go find someone else to dance with while I gamed, but I could tell she was a little miffed when I said okay and wandered off ready to show off my MK skills.
About an hour later, I emerged, taking a break while the next round of players went. I was doing well and wanted to see how Ash was holding up before I had to jump back in. The place was still really packed but I was able to look toward the dance floor and spot Ash immediately. She had a sly smile on her face and was swaying her hips, face-to-face with a guy I didn’t recognize. He was tall and handsome with a chiseled jaw and hungry eyes. He had one of his hands on Ash’s lower back, his fingers extended down and clearly on top of one of her asscheeks.
My brain demanded I go over there and yank them apart, but unfortunately there wasn’t enough blood present for it to dictate anything. Instead, my dick ordered me to stay put and watch as my girlfriend and this stranger ground their hips together. They danced like that for a while longer before his hand slid lower and he palmed Ashley’s ass, the flimsy fabric of her cotton skirt providing barely any barrier. I had done the same to Ashley before in the very same skirt, so I knew he was getting practically unbridled access to my girlfriend’s firm little butt.
I let out a breath as Ashley spun around, forcing his hand off her ass, but the next one caught in my throat when she backed up and pressed herself against him, rocking up and down and leaning her head onto his chest. Suddenly, her eyes went wide and she turned up to face him. I saw her lips moving, her eyebrow quirked questioningly. The guy grinned and nodded, saying something back. Ashley bit her lip and then separated from him again before turning back around to face him and lowering her hand down to his leg. She ran her palm down his thigh, her eyes growing even bigger with every inch of the journey, until she finally stopped almost halfway down.
Her jaw dropped and I saw her shiver when he said something to her. He reached up and wrapped his fingers in her mess of wavy dark locks.
“Dan!”
I whipped my head toward the hallway leading to the game room. One of the other players stood there waving his arm and beckoning me. I glanced back at the dance floor, hoping to catch sign of Ashley and the stranger but they had disappeared back into the crowd. Adjusting myself as best as I could, I headed back into the game room to continue the tournament.
My second showing did not go nearly as well as the first. I kept getting distracted by lingering thoughts and fantasies about Ashley and the stranger. I couldn’t stop picturing the look on her face as she was surely feeling him up. I kept finishing the image of him wrapping his hands in hair, the two of them making out heavily, her palm rubbing all the way up and down the clearly lengthy shaft hidden under his pants. When I finally got knocked out of the tournament, right near the end, it was because I was lost in the thought of Ashley bent over on the dance floor, skirt hiked up to her waist and his big cock stretching her pussy wide open.
Once the tournament was over, everyone exited the game room. I was surprised to find the party winding down, with only a few stragglers left, all of whom were gathering up their stuff and trickling out. I saw Erin and stumbled my way over to her, all the alcohol from the night hitting me hard. She grinned at me, taking a sip of her drink, as I approached.
“Hey, thanks for the party. I almost won that tournament.”
“Huh?” Erin said, her grin dropping in surprise. “Is that where you were this whole time?”
“Yeah. Why?”
“Um, no reason. Oh! Here comes Ashley.”
I turned around to see Ashley emerging from the hallway leading back toward the rooms and bathroom. Her hair was a bit more unkempt and the makeup around her eyes was a little smudged. She wobbled and swayed her way over to Erin and me.
“Hey babe,” I said. “You alright?”
“Feeling very drunk,” she said, gazing at me with lidded eyes. “Erin, is it okay if we crash here tonight?”
“Sure,” Erin said, her eyes darting back and forth between Ashley and me. “But, uh, a friend of mine from out of town is also crashing. Max.” She pointed toward the same hallway Ashley and I came out of earlier, right at the stranger. “If you don’t care, then by all means.”
I looked over at Ashley, who stared at Max with a dreamy look on her face.
“No problem at all.”
We all went to bed shortly afterward, Ashley and I collapsing onto the mattress of the guest bedroom. Max was in the room next to ours and Erin’s room was a little further down the hallway. I passed out very quickly but awoke not too long after, always having had trouble sleeping after a heavy night of drinking. Ashley was gone. I carefully climbed out of bed and opened the guest room door, a twisted feeling deep inside my gut. I crept down the hallway, toward the kitchen and living room, a strange but familiar sound hitting my ears and getting louder as I got closer. Still shrouded in the darkness of the hall, I peered out, the area illuminated by the moonlight streaming in from the balcony.
I marveled at the sight that greeted me: There on her knees was my girlfriend, completely naked and frantically sucking Max’s impossibly large dick.
Ashley’s pale slim body looked incredible in the moonlight. Her ass curved out splendidly from her frame and her small tits, topped with dark pink nipples, jiggled with every bounce of her face onto Max’s thick, fat cock. The girth of it stretched her lips almost grotesquely apart and her throat bulged from the near five inches buried inside of it. The other half a foot filled her mouth, appearing and disappearing as she slobbered all over his dick. Seeing that baton disappear into her face nearly made me explode in my pants.
“You couldn’t wait to get my dick back inside that hot mouth of yours, could you?” Max leaned against the kitchen island, head bowed and growling obscenities at her. “God, your mouth was made for swallowing big fucking dicks. Ungh! Your boyfriend could never stuff your mouth like this could he?”
“Not even close,” Ashley said, panting heavily after removing the monster cock from her mouth. A river of drool and spit flowed down her chin. She wiped it away with the back of her hand. “This big, fat dick stretches my throat in ways he never could. And it’s going to stretch my pussy next.”
Max groaned as Ash dove back down, swallowing his cock all the way back down her gullet. He dug his hands into her hair and guided her head up and down as she humped her pretty face into him. She kept her steel blue eyes wide open, staring up at him and meeting his gaze while she violated her own throat in ways that she never did with me.
I carefully freed my much smaller but equally hard cock and began beating off to my months long fantasy turned reality. Ashley was a total slut for Max’s big cock, attacking his dick with the type of fervor I never thought possible from a girl like her.
“Do you think he knew that while he was playing video games I was using your pretty face like it was my personal fleshlight? You couldn’t wait to get my dick inside of you. The second you felt it on the dance floor, I knew you’d open your mouth for me the moment I asked.”
“The moment I saw you, I knew I was going to swallow your cum,” Ash said. “When I felt your giant dick pressing into my ass, I knew I was going to fuck you.”
I stifled my groans, my orgasm fast approaching from the wanton display happening a few feet away from me. With a growl, Max yanked Ashley to her feet. I caught a quick glimpse of Ash’s pussy and the small patch of trimmed dark pubic hair capping her glistening lower lips. He spun them both around and turned Ashley away from him, so she was facing the kitchen island. He bent her over and she grabbed the edge of the countertop for balance.
“Oh god, yes,” she moaned as he held the base of his footlong member and pressed the tip into her folds. “Fuck me… fuck me with that big fucking monster dick.”
The moment he penetrated her, I came, shooting globs and globs of cum onto the messy floor, still strewn with trash from the party. It had happened. I was watching Ash fuck another man. A man with a cock over twice the size of mine. She groaned, rocking her ass backward into his thrusts, shoving herself deeper and deeper onto him, striving to bury all of his dick inside of her. Ashley was acting like a total slut, betraying me and allowing a complete stranger to fuck her, all because he had big dick.
I looked down, surprised to see myself hard again so quickly after cumming. I started stroking myself once more, returning to the sight of my girlfriend getting railed by another man. By this point, Max had all eleven inches of his dick sheathed into Ashley, his hips making her ass bounce as he pulled back and fucked forward in hard, animalistic thrusts. Ashley had her head against the counter, face twisted in pleasure.
“Unnhhhh yes! Pound my pussy. God you’re so fucking BIG.” Ash lifted her head up and arched her back. “This is… the best fuck… I’ve had in months.” Max slammed into her harder. “Ooohhhh FUCK! This might be the best fuck I’ve had in MY LIFE.”
“You love my big dick inside of you, don’t you? Can your boyfriend even compete with a dick like this?”
“Oh my god… He could NEVER fuck me like this. Your dick is fucking amazing,” Ashley moaned, her eyes rolling back into her head. “Fuck me harder. Oh yes… yes… YES. Keep fucking me. Keep fucking me with your huge fucking dick!” Ashley tightened her grip on the countertop. Her body stiffened, her breath coming out in short bursts. “I’m gonna cum… I’m gonna cum… Oh fuck… I’m going to cum on your HUGE FUCKING DICK!”
Ashley exploded into an orgasm, knees bending and straightening, ass grinding against Max’s pistoning cock, trying to keep all of him inside of her. Finally, she collapsed, her body relaxing, Max’s thrusts continuing to rock her as she panted and caught her breath. “You’re so big… you’re so big…” she kept mumbling to herself, Max’s dick slowly working her back up again.
They continued to fuck for another twenty minutes. Max’s dick was unrelenting, and Ash savored every moment of it. I had cum the same time Ashley did. The vision of my girlfriend’s pussy spasming around Max’s cock, her hole stretched wider than I could ever hope to achieve, had sent me over the edge. I emptied my second load of the night onto the floor after witnessing my girlfriend cumming harder with a stranger than her entire two years with me.
I had stumbled back to my room, needing to lay down after cumming twice in such quick succession. I knew I’d probably regret not seeing Max finally blow his load and even lying there I wondered whether he’d flood her cunt or maybe douse her pretty face with ropes of jizz as thick and fat as his cock. But I had to recuperate, and I told myself that I had more than enough memories at this point to last a lifetime.
However, lying there, twenty minutes later, Ashley still not having returned, curiosity started to get the best of me. I shifted in the bed, about to get up (in more ways than one) and go back out when I heard footsteps coming down the hall. I faced the door and pretended to be asleep but kept my eyes open just a crack. I heard the click and subsequent clack of Max’s bedroom door opening and closing and waited desperately for Ashley to enter our room so I could see if his cum was splattered across her mound and legs or all over her face. Instead… nothing.
I sat up, confused, but then I heard it. The faint, rhythmic sounds of a mattress creaking. It took me a moment to realize what was happening, but once I did, my dick popped back up to attention once more. I lay back down and wrapped my fingers around my shaft. The squeaking next door picked up in pace and I matched it with my own strokes.
Source: reddit.com/r/sexystories/comments/r85q4t/because_of_a_strangers_big_dick_mf_cheating_voy