I set up a threesome and end up becoming a cuckold [cuckold] [real story]

I (22M) was with my (20F) gf at the time, we had never really entertained or even discussed the idea of having anyone else in the bedroom at all with us. I was the first and only guy she had been with up to this point. Although I always kinda found myself jacking off to cuckold porn, I wouldn’t think too much beyond it. After all letting another guy fuck my girl just seemed way too out of the ordinary for me.

My gf and I had a mutual friend (21F, we’ll refer to her as “G”) who we were super close with. We hung out often, never really had any conflict, just vibed! G started dating / talking to another mutual friend of ours, he was a pretty cool guy and we all got along. A little more context about the guy, he actually tried to get with my girl before me and her were dating, and even while we were dating he would make passes at her, so I knew he liked her in some way. Myself and G actually hooked up a year before I even met my gf, so she kinda always had a thing for me. We are all pretty fit and thin. My gf a d G were both slim petite girls in their early 20s and me and the guy both lifted weights often, so pretty muscular. Me and G one day are alone and start talking, the idea of a threesome is brought up, between me, G, and my gf. I told G that I doubt something like that would happen just out of the blue, but after some more conversation we pretty much had a plan to set it up. The idea was to go hangout at G’s apartment and kinda just start and see if it stuck. I was honestly down with the idea of having 2 girls on me, so I agreed and we set it up.

On one Saturday night, G invited me and my gf over to chill. We got there and G’s man was also there, which I didn’t see as a problem. (I assumed he would leave soon) So we all start vibing, playing some games, talking and what not. G at one point puts Spotify on the TV to play music and turns off the lights. (This is something we did before so no one really batted an eye) I was waiting for G’s man to leave, but I started to get texts from G to “start now” I was hesitant, and thought about it, I figured that we might not get a threesome, but I’m guessing maybe just have sex all in the same room? After another minute I started kissing and grabbing my gf, I put her on top of me and just start going at it. I crack my eyes open a bit to see that G and her man are doing the same. Another minute goes by and I have my girls and my clothes off, my gf is wearing a super hot matching set, and I can see G’s man looking at my gfs ass. My gf starts to suck my cock, and I’m loving it. G starts to get eaten out by her man, so everyone is having a good time, I’m visually looking at G’s situation, and getting turned on. A few more minutes pass and we’re on the floor. G pulls away from her man and starts to eat out my gf. I step back and sit on the couch next to the guy. We’re both watching and stroking our cocks. At this point I hadn’t looked over at his yet, but when I did I realized how big he was. I’ve been told a lot that my cock was big and that I’m good in bed etc..but when I saw his cock I just felt small. I could also tell he wasn’t super had yet. After another minute of stroking to the girls, we both get up and start going to them. At this point my gf is riding G’s face reverse cowgirl style. So I get behind my gf, meaning G’s head is kinda under me. The guy goes to the front of my girl so on G’s bottom half. I’m expecting him to either start fucking G or eating her out. I’m kissing my gf from behind and feeling her body, G starts to lick my balls and cock from underneath. Then I hear the guy say “hey bro, do you mind?” I look up and see him with his hands on my gfs waist, gripping her ass a little and pointing at her. I thought for a second and I said “go ahead”. Immediately they started passionately making out, I see my gf reach down and put a hand on his huge cock and start to jack him off. I don’t even remember what G and I were doing because I was just staring at what my gf was doing to this guy, and what he was about to do her.

Eventually G starts to get up and gives them a little shove so that they get some space. The guy lays back and my gf is now on top of him. G starts kissing my neck and I’m just not even paying attention anymore. The guy starts to rub us bare cock around my gfs pussy, and I know what’s coming next. None of us are wearing condoms or anything, so he’s about to fuck my gf raw with his huge cock. He was fully hard now, and his cock was throbbing and dripping with precum. I knew he wanted to fuck my gf really bad, and honestly that made me even hornier. I watched as he grabbed it and started to insert it into my gf. She made a sound that I have never heard her make before. He was barely putting the tip in and she was moaning for it. He goes deeper and she’s riding him moaning and it’s so hot, I immediately grab my own cock and start jacking off. He’s letting her ride for a bit, then he reaches up, grabs her, pulling her close to him and he starts thrusting up. I’m watching stroking my cock faster and faster. He’s plowing into her, with every thrust is a clap from her ass and a moan of pleasure. Her pussy cream starts to run down his cock, so I know she’s loving it. And when his cock slipped out, I watched her grab it and stick it back in. I know she wanted it more. I’m still jacking off and without even thinking I say “fuck her doggy style bro, she loves it” He stops his thrusts, grabs her and puts her on all 4s. I knew my gf loved doggy, and I knew with the size of his dick, she’d get a good fucking. He slips back into her and immediately goes full force into her pussy. The clapping of her ass and moans are even more prevalent now. I’m watching her ass jiggle from him slamming into her. I look at her face and can tell she’s enjoying every second of it. At one point I see her reach through her own legs and grab his balls, and he let out a huge moan. That’s something she does with me, and I know he’s feeling good. He keeps fucking her and I eventually cum all over the floor from watching. G, who’s just been kissing me says “oh you came fast” I was just so in awe of what I saw. G goes over to them and starts kissing her man, my gf comes back to me and sees I’m soft and says “ohh someone is soft” After about a minute of her kissing me and jacking me off to get me hard again. She stops and says “I want to go fuck him some more” I knew at that moment I was definitely a cuck. After the situation whenever I’d have sex with my gf, she’d start dirty talking me about how good that guy was fucking her, and I would cum almost immediately.