It finally happened, I had a threesome with my girlfriend and personal trainer. They flipped a switch inside me forever [MMF]

I had been fantasizing about Kelsey and Marcus for awhile, writing about her hot past and trying to reconnect the two again. The lead up to how I got cucked is on my page. You should probably read my previous posts too to be brought up to speed. I tried to be very descriptive, I’m not a writer so go easy on me. Our third didn’t..

I don’t know where or how to start this. We agreed to a threesome a few weeks ago and on the day I brought it up to Marcus I felt sick with anxiety the whole night before. I fumbled back and forth with the idea and even told Kelsey I don’t think I could go through with it, she supported me either way.

The two of them were becoming closer and practically flirting right in front of me ever since Marcus became my trainer. Whenever I brought it up to Kelsey she reminded me that this is what I wanted, I asked her to reconnect and open herself to Marcus how she used to. She was right, in those moments I would fill up with jealousy and spite but later on at night I would frantically be taking my pants off and jerk off to the two of them. The fact that she would wear her tightest and most revealing gym clothing around him to get his attention killed me. Interrupting our workouts and joining in on days he was training me 1 on 1. Adding him back on snap chat and posting thirst traps to her story so he would message her. She was so horny and acting like a slut ever since our agreement to the threesome.

I manned up on the day of my check-in when Marcus praised me for my progress and how much body fat I lost, while adding some lean muscle mass. I thanked him, gave him the credit he deserves but also revealed that I had an extra incentive from Kelsey to shed this stubborn belly fat. He didn’t hesitate to ask what the incentive was since we’ve become friends, my voice cracked and I could barely get it out.

“She..she promised me a threesome if I get to 15% body fat.”

“Ohhh shit! That’s awesome man, we gotta start putting in some extra work then!” he said as he high fived me.

“You pick out the girl yet? Show me her socials!”

It was the moment of no return, now or never. I was sweating bullets and so nervous.

“Actually, I…we were thinking you could…”

He laughed like I told him a joke, he was scrolling through his phone but then looked up at me.

“Wait. Are you serious man? You know we..”

“I know everything. I know about you two. When you trained her, your roommate. How she acted with you. I want a threesome with 2 guys not 2 girls…”

He took a moment to gather his thoughts before he said anything to me, he had a serious yet confused look on his face. I felt like I was going to throw up from what I just said.

“You know..everything?..She told you all that shit?”

“Yes. And I can’t stop thinking about it”

“and YOU want ME to fuck her again, with you?”

He stood up and raised his voice at me, I honestly didn’t know if he was pissed off at what I was implying or what was going on. I kind of sheepishly looked at him and nodded my head. “Is that cool?” I asked.

He wrapped his arm around me and I felt so small, I almost wanted to back out now that I could feel how strong and powerful he was. He was a monster compared to me, muscles were 10x as big and his deep voice was always intimidating. “Let me call her and set it up.” He took out his phone and called her right in front of me as he walked out to his balcony.

“Hey Kels, I just got off the phone with your boy.” Then he shut the door behind him and talked to her for what seemed like forever. About half an hour later he came back inside and I was sitting in his living room. “You guys will be coming back tonight and we can have some fun” he informed me. I accepted that I wasn’t in a position to argue. I really thought this was going to be more planned out but I guess Kelsey and Marcus took control.

I called her as soon as I got in the car, I was going to be home in 20 minutes but I was internally freaking out. She rushed me off the phone and said we would talk when I got home as she needed to get ready, I could tell she was preoccupied. She was in the shower when I arrived, she told me to get in and freshen up for tonight. She was shaving her legs and had a smooth pussy already when I hopped in. She gave me a kiss and said “You did it! I can’t believe it’s actually going to happen” I told her I was so nervous but he took the control right away and set this up. Kelsey made me exfoiliate, scrub, shave my pubes, the whole package for him. She said she knows he’s completely smooth, everywhere.

Kelsey put on a lacy black thong and matching bra underneath a tight little maxi dress, I asked what I should wear and she acted disinterested and said it didn’t matter. I wanted to look the part showing up so I wore dress pants and shirt with a belt, it was a bit formal but I thought I looked good. When we were ready to get out the door I stopped for a second, I couldn’t believe we were actually going through with this. Kelsey suggested we take a couple shots to loosen up, good call. She took 1, I took 4. probably 2 too many. I was buzzed during the uber ride to Marcus’ and she was snap chatting him from the back seat. He was excited for the two of us to show up but I knew he was eagerly awaiting her arrival a lot more.

On the elevator ride up we shared a moment of realization that we were actually about to go through with this. My fantasy was about to be fulfilled, I think I had an erection ever since my car ride home from Marcus’. We kissed and said I love you’s. I thanked her for going through with this, for being so understanding. BING! It was finally time to do this, we were on his floor. He left the door unlocked and music was playing throughout his apartment, glasses of wine already poured ready for us.

“We’re here!” Kelsey shouted. Marcus took about a minute to come out from his bedroom with a towel wrapped around his waist, fresh out the shower and looking like a black superhero. Not an ounce of fat on his body, chiseled from head to toe. Veins filled his upper body, massive pecs and a ridiculous 6 pack with tattoos all over. I think Kelsey and I were both drooling, in complete awe of how sexy he looked. How superhuman he looked, I felt completely ashamed of my body and wanted to turn around and run.

But then I saw him approach her and he tilted her head up with his finger and gave her a kiss, I could feel the electricity radiating from them. She whimpered into his mouth, then he gave her a big hug and looked right at me. I felt so intimidated, so small. He grabbed her ass and she could barely wrap her arms around his massive frame.

“I’m so happy you’re both here. Thank you for bringing her back to me” he said as he shook my hand. “Have some wine, do you guys want to hang out for a bit?” He grabbed a glass and started drinking and handed one to Kelsey, his arm was around her waist and they looked like the couple now. She told him we had some shots before we got there to loosen up, I was drunk but easily persuaded so we did a cheers and drank around his kitchen island.

“You guys are so dressed up! Sorry I just finished working out and needed a shower” he said with a smirk, I could barely muster the strength to say anything or look him in the eyes. Marcus walked over to me and stood behind me, he put his hands on my shoulders and squeezed them “This is supposed to be fun man, don’t be so nervous. It’s not her first time”. I felt dizzy and helpless under his grip, his friendly and fun demeanor in the gym turned much more assertive now. “I think I just need some more wine if that’s ok. I can’t believe this is really happening, are you sure it’s ok hun. You’re still ok with this?” I looked at Kelsey for reassurance.

“You asked me for this! You’re lucky we’re doing this early for you. Are you not wanting to?” she replied back kind of pissed off. “No! I’m sorry, I want this. I’m just” I didn’t know how to explain the feeling of being so turned on yet so puny in front of this gigantic man. Marcus reached over me and pressed his body against mine to grab the wine bottle and pour me another glass, unintentionally letting me feel his big cock Kelsey told me about against my lower back. Then he made his way back over to my girlfriend who couldn’t keep her eyes off of his physique, I could feel my erection pressing against my pants when they held hands.

They started slow dancing to the music right in front of me and when her back was turned to me Marcus motioned for me to come join them. I downed my wine and got behind Kelsey, pressed my hard on against her ass and kissed her on the neck. Marcus started licking and kissing the other side of her neck and she let out a huge moan “Oh my god that feels so fucking good”. She started rubbing his bulge over the towel and they started making out millimetres away from my face, he held her face in place with his massive hands and they took turns sucking on each others tongues. It was unfathomably hot watching them, eventually she turned around and starting making out with me which felt different. She was so horny and kissed me with a new passion, I could feel Marcus’ hands feeling her body up as we kissed. When I went to grab her ass I brushed the back of my hand against his manhood, my first introduction to his big black dick.

When we broke away she looked me in my eyes and told me “I love you so much. Thank you”, it was the reassurance I needed during this moment. I can’t compare in anyway to Marcus physically but at least we all knew how she felt, she loves me. And she said it right in front of the guy she’s going to fuck and previously had a relationship with. I felt like I was on top of the world. I wanted him to feel jealous, and he was. I learned later on, not to provoke a jealous, greek god like figure with a huge cock before fucking your girlfriend.

Marcus started undressing Kelsey behind her, pulling down her dress and revealing her sexy matching underwear. She followed suit and starting unbuttoning my shirt and tugged at my belt, trying to get me naked ASAP. He started touching her pussy over her thong as she stripped me, I looked up to the both of them with their eyes on me. I had my pants around my ankles and stood there shirtless in front of the two hottest people in the world. I lost my erection in seconds. The booze didn’t help. I couldn’t be any more of a wimp if I tried. Kelsey started rubbing and stroking me to get me hard again but my mental wouldn’t allow it, “What’s the matter?” Marcus asked while Kelsey tended to me making it way worse. “I think he needs your mouth babygirl” I had never called her that or heard it be said before but seeing the way the two interacted the nickname made sense.

She dropped to her knees and started sucking on my flaccid cock, pulling on it and desperately trying to get me hard. I know she was embarrassed for me, for the both of us. It felt amazing but I was still unable to get hard, I could see the look on Marcus’ face that said this was a waste of his time. He looked annoyed and bothered that I couldn’t even sport an erection for a threesome that I proposed, I felt like shit. For wasting his time, her time and for even bringing it up. I asked her to give me a moment and he immediately dropped his towel on the floor, Kelsey and I both gasped at the same time.

His cock was beautiful, it feels strange even typing that but it’s the only way to properly describe him. He was more well endowed than I imagined, he curved like a banana and was cut. Just like his body there were prominent veins running down the shaft, his balls hung so low it looked rather comical. Kelsey turned to him and took a moment to savour the sight, he bounced it around in front of her face without using his hands. He could just control his cocks movement by using his pelvic muscles, she looked up at him and told him it was bigger than she remembered. I guess being with me skewed her memory, she started stroking him slowly and analyzed just how long he was. Pulling on his cock made him swear under his breath, she alternated between 1 and 2 hands on it while it was clear another 2 could be added. “It’s time baby, suck on daddy’s dick”

She looked up at him and opened her mouth to house his cock, placing it on her outstretched tongue and guiding him into her throat. She could barely fit half of it in her mouth before being met with resistance. “Your dick is so fucking big holy shit” she says before putting him back in her mouth. Marcus lets her do her thing but tells her to “make it nasty” which I guess is code for use a lot of spit and shove it down your throat. Kelsey does as she’s told, holding his big black cock at the base and shoving what she could down her throat. Gagging herself over and over and over again, coating his cock with her saliva making it shiny and slippery. When she pulls her mouth off of it, strands of spit connect from his cock to her lips. “Nasty” is an understatement, he lifts her up to her feet from under her armpits and kisses her aggressively. Kelsey moans into his mouth and he tells her what a good girl she is, she tells him that she can’t fit it all in her throat anymore in an upset tone. “We will practice baby girl, I know you can do it for daddy”.

They haven’t noticed yet and I didn’t want to intrude but I’ve finally gotten my erection back! I press myself against Kelsey’s ass and she turns around with a smile, she starts kissing me and I can taste Marcus’ precum on her lips. He kisses her neck and down her spine slowly, she’s moaning into my mouth now and stroking me with her hand. I was getting pathetically close to finishing with the attention she’s giving me, I’ve never cum from a handjob before but the whole scenario was too hot to handle. I was grunting and muttering Kelsey’s name under my breath, she had me under her control and started stroking me with the intention of finishing me off. Marcus encouraged her to make me cum and when I heard his deep voice take a break from tasting her holes I came so fucking hard! All over her thighs, arm and hand. It looked like the biggest load of cum I’ve ever produced and it’s not surprising given how horny I was all day.

“Now it’s cleanup time” Marcus announced as he stood up, Kelsey looked me in the eyes with a surprised look. She was still holding my softening dick in her hand, both covered in my cum. “You got some right here” he said to me and pointed to the top of his feet. I apologized and said “oh shit I’m sorry! Good thing there’s a towel here!” trying to keep it light and the vibes up.

“Nah, you’re going to clean up your cum with your mouth”. I looked at him puzzled “What?” Kelsey let me go and took a step back so I could see the cum on his foot. “It’s yours. Clean it up”. Marcus put his foot on top of the island and balanced himself on one leg, I could see the insane muscle definition of his shins all the way up to his ass. He looked like he was carved out of stone and scary as hell when he was serious. I did what I was told, swallowed my pride and my cum by slurping up my seed off his freshly washed foot. It tasted like salty baking powder, didn’t smell great either. When he stood back up he grabbed me by my arm “Now get on your knees and clean up the mess you made on her”. I stood there in shock. Kelsey looked at me wide eyed then at him “Whoa, Marcus” he cut her off “he wanted this, he wants you to swallow. He needs to taste himself before that happens. And I don’t want his cum on your lips, those are mine tonight”. We looked at each other for a moment before Marcus ushered me down to my knees with one hand, his strength was something I’ve never felt before.

Kelsey put her hand out and I licked up my own semen from her palm, then she started putting her fingers in my mouth and I sucked them clean one by one. “Oh my god that’s so hot baby” she said to me as I looked up at her helplessly. She was stroking Marcus’ cock right in front of my face as he kissed and nibbled on her ears, I didn’t know which one of us she was talking to. I had to lick up her leg to her thighs to gather the rest of my load on my tongue. I tasted gross, it smelled like bleach and flour. To add to the humiliation my face was inches away from his glistening cock, I could smell the precum leaking from his perfect dick. When I finished up my stomach was turning from the taste and I told them I think I’m going to be sick.

Marcus instructed me to use the main bathroom and not his ensuite. “Clean up and get some water in you, it’s about time we go to the bedroom baby girl” Kelsey gave me a kiss and whispered to me “Come back when you’re ready baby. I love you”. I watched as he effortless picked her up by her ass cheeks and she wrapped her legs and arms around him, they made out down the hallway and giggled something to each other.

I scurried to the bathroom and looked myself in the mirror, what just happened? How did it get to this? I really just became a cuckold to my personal trainer and girlfriend. I threw up from the adrenaline running through my body, it was that or it was the load of cum I just swallowed that came from my own penis. I threw cold water over my face, I started to sober up. Eventually I made my way to the kitchen to grab a glass of water, I heard Kelsey moaning excessively loud. I started to get hard again but feared that if I tried to join in again I would disappoint the both of them. I tried to stay in the kitchen and just listen but what I heard was just way too sexy to not be seen. So I made my way down the hall quietly, they left the door open and I laid on the ground on my stomach so I couldn’t be spotted.

When I saw what Marcus was doing to her I had to cover my mouth and let him continue without interruption….

Source: reddit.com/r/gonewildstories/comments/z4y397/it_finally_happened_i_had_a_threesome_with_my

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