Disclaimer: This story is 100% true. All parties were consenting and had knowledge of the situation. I will respond to any comments with questions, happily. Open to chat in DM's but short/uninteresting DM's will be ignored.

My (33F)GF and I (37M) have been dating for 2.5 years. After my divorce a couple years ago I learned a lot about myself and fully embraced all my fantasies, especially my desire to play around with the cuckold dynamic. As such, I told my girlfriend all of this in the first few days of us talking as I could tell I liked her right away. Luckily for me she'd had some non-monogamous experiences in the past and wasn't scared away by it. Since we also wanted to explore other aspects of non-monogamy, we agreed to learn together but also stay closed while we build a foundation. I now have a FWB and she has a lady-interest as well, but those are stories for another time.

Over our time dating she's stayed in touch with a few previous hookups and flames. The guy in this story, we'll call him T, was one of them. She's met up for drinks with him a few times, and he even joined us on a group motorcycle ride. Nice guy. He really likes my GF, and obviously respects her, which I appreciate. He's also 6'3"ish, my age, and built pretty well which I like. I've learned that cucks obviously come in all shapes and sizes and personalities. However, I find myself in the "unlikely" category. I'm 6', 195 and mostly muscle, handsome and have 7" cock, am good in bed, and confident in and out of it. So naturally a man being taller and with a bigger cock isn't the easiest order. I knew T was at least taller and bigger physically, which was a good start. Like all cucks I prefer to see my woman overwhelmed in all ways, and she's 5'10" so that's also difficult to find.

Fast forward to last Friday. On Thursday, my GF mentions she made plans to get drinks and catch up with T, which isn't unusual. We both have friends of the opposite gender and don't get jealous of that so of course I'm not only fine with this but think little of it. I had potential plans with my FWB on Friday night also. During the day in question, the weather is also bad (we're in MN). My GF mentions T may crash on the couch if it's really bad as he lives 20 mins south on country roads. Obviously I'm also cool with this, but at this point, I start to get that feeling in the pit of my stomach (in the best way). We haven't discussed her taking a next step with T specifically, so I don't really say anything. Despite going on a few drink dates with old hookups and even a potential bull, nothing has come of it yet.

We had gone out Thursday night as we were both off on Friday, and I was pretty hungover. With the bad roads, and not feeling 100% I decide to stay home and watch movies.

T comes by and picks her up, and I kiss her goodbye and say have fun!

While they're out I remind her I was washing the spare bedroom sheets, and could make the bed for T to crash in if he wants to stay. At this point I'm just trying to be nice, but the cuck in me obviously wants to grease the wheels as much as possible lol. She says "thanks babe that's great!"

After dinner out of town they come back to town for drinks so they're close to home. Around 8:30, she calls me. I can tell by her voice immediately she's quite tipsy and in a great mood. She says they're having one more and coming to the house, and asks if I want anything from the liquor store. I was indifferent but said "sure a 6 pack of good beer, see you soon". Then I don't hear much until almost 11. She calls again and apologizes for missing the liquor store as they close at 10, and that they're waiting for a cab home. I say no worries on the beer, but that I'm tired and probably gonna crawl in bed and say have fun! I also send a text that the bed is made, and I put a couple seltzers and beers in the upstairs fridge for her and T, and that I'm crawling in, assuming they'd want to keep the party going as it was before midnight.

I'm watching some TV at home and she walks in, giggling about needing some cash for the cab as she didn't have enough. She kisses me goodnight and heads back upstairs. I fully expect them to stay up a bit and drinking some more in the kitchen or living room. But, at this point, I can definitely tell where things are going, and it's gonna be so hot.

To set the stage a bit, we live in a one level Midwestern home with a finished basement. The master is in the basement and the one room we use as a guest bed is basically directly above the master. You can hear every footstep and even quiet talking above you, which can be annoying when we have guests but in this case I'm obviously beyond anxious with anticipation.

Not 5 minutes after they get in I hear footsteps in the guest bedroom. I hear some noises I can't make out, and the one that is unmistakable....my GF moaning. I'm IMMEDIATELY rock hard. The moans are getting louder, and from the lack of sounds of movement I can tell he's going down on her.

From here on out I'm going to mix in things I only know for sure because she told me later, just for the sake of brevity.

T, being a bigger guy, has really large hands with thick fingers. My GF loves it when you use the "come here" motion with your fingers on her g spot while licking her clit. Drives her wild. T is doing this and her moans turn to loud groans and a few "OHHHH GODDDD YEEESSSS". I hear her cum twice, and later learn she was squirting all over the place. I'm furiously jerking off at this point and it's REALLY hard not to cum when her moans get loud but I want to wait until the main event. After about 20 minutes of this, I hear a few moans from him as she went down on him, but later learned they drank a lot and he had whiskey dick and they both fell asleep and it went quiet. I can't hold it anymore and can't sleep so I cum, near violently, and pass out.

Link for Part 2:https://www.reddit.com/r/CuckoldCommunity/s/9Z27KjAwSh