Let me introduce myself: my name is Kouta, and this is my first story—I'm so excited to share it with you! I'm 32 years old and 6'2" tall, and I have a 7-inch cock, really thick. My girlfriend's name is Luci. She's 33, petite, with a small butt, but her tits are well-formed and delicious. We've been together for over ten years, and we're still going strong! My girlfriend and I had talked two years ago about having a threesome with another woman and then with another man, just for the experience, and she had agreed, but on the condition that everything be 100% straight. We had such a great chat about it, and we totally agreed! But then, we never actually did anything, and the subject never came up again.

Six months ago, my girlfriend's friend, Karina, came over with her boyfriend, Luis, to have a drink and chat at our apartment, which was so much fun! I had the pleasure of meeting Karina, and it was great to catch up with her. I was also thrilled to meet Luis for the first time. We drank wine and beer, listened to music, and everything was just perfect. Karina is the same size as Luci, but she's got a fantastic bubble butt and small tits. She's absolutely stunning, and her boyfriend is the same height as me. He's not fat or skinny.

Between conversations, we heard a baby crying in the second-floor apartment and started talking about how loud everything is—it's all part of the fun! Then Karina asked us how we managed to have sex. We replied that when we just want to satisfy our desires, we do it in the apartment, without making a fuss. But when we really want to, we usually go to a hotel so we can make noise—and that's great! We started talking about sex: how often we do it, whether we had ever gotten bored after so many years together, that they also go to hotels (they don't live together), about a time they did it on a balcony while on vacation, etc. And, between conversations, laughter, and drinks, I guess my girlfriend started to feel hot and took off her sweater. Normally, when she goes out, she always wears nipple covers, but since we were at home, she wasn't wearing them, and by then, thanks to the drinks, she didn't care, because she was wearing a tight white mini-blouse, and they were completely visible, especially in the light. Not only were her nipples visible, but you could even see their color!

It was clear that Karina and Luis were looking at them, but he just couldn't take his eyes off them! After a while, as they continued talking, Karina said to her, "Oh, girl, you have such beautiful tits and nipples," and Luci replied, "OMG, I'm sorry, I'm showing my tits to your boyfriend!" And Karina laughed and said, "It's okay, it's just looking, and I give him permission because we're close friends."

I joked that I was the one who was screwed because everyone was looking at her and I couldn't see anything. "Well, I don't have anything to show you just yet, but I can share this with you!" Karina exclaimed. She lay down on her side on the couch, lifted her dress, and showed me her ass and thong. She was wearing one of those fabulous summer dresses that cling to the body but are made of thin fabric, which made her look even more sensational. At that point, the four of us, without saying a word, were already falling into the vibe we were getting into.

Luci was also a little tipsy and took the first step, saying, "But then Luis should see without anything on too, like she showed you." With a playful grin, she lifted her shirt, teasingly revealing her tits to both of them. Karina turned to her boyfriend and smiled at him. She started joking with her boyfriend, saying, "You look really happy, because those aren't small like mine."

As I said before, Luci's tits are not huge, but they are very well-formed—they're perfect because they fit in your hand. Without saying a word, and without lowering her blouse, Luci approached Luis as if to suggest that he touch them and then sat down next to him on the couch. He began to touch her tits, and she loved it!

Karina jumped up, sat on my lap, and said, "I'll let you touch my tits too," and started laughing as she took off her dress, leaving only her thong on; she wasn't wearing a bra. Honestly, I touched her tits because that's what she offered me, but with my other hand I grabbed her ass. She was very thin but had a big, gym-toned ass—it was firm but soft to the touch. I told her I wanted to see them better, and she stood up in front of me with her back to me. I told her they were very biteable, and she said, "Well, you try them too." At that moment, I realized that Luci was already lying on the couch and Luis was passionately kissing her tits. Then Karina said, "Let's go to a hotel, because they won't let us make noise here."

Luci said she was going to take a quick shower, Karina asked if she could go in with her, and I also quickly got into the other shower to freshen up. Luis said he would shower when we got to the hotel. After about fifteen minutes, we grabbed a bottle of tequila and some lube that Luci had in her drawers and left. We went to the hotel and, on the way, decided whether we wanted separate rooms or rooms together. Karina said it was better to have separate rooms, but the rest of us were determined to be together, so when we arrived, we chose a room with a jacuzzi and a very large bed.

The moment we'd all been waiting for finally arrived: the four of us went to bed, but Luis said he was going to take a quick shower. Karina, without waiting, took off her dress and was left in her thong. Luci did the same, and I was in my boxers. We were drinking from the bottle of tequila when Karina and Luci came up to me and started kissing me! After a few passionate kisses, Karina suggested to my girlfriend, "Go take a shower with my boyfriend so he isn't left alone." I just watched as my girlfriend teasingly took off her thong and headed for the bathroom. I couldn't see from the bed, but I heard her get in the shower. They said something, but I couldn't hear it because of the echo and the water. Karina and I were kissing, and I took off my boxers. She looked surprised, which was great! "OMG, it's really thick!" At that moment, I felt like the man with the biggest cock in the world, and I thought, "Poor Luci, that means that Luis is going to have a small one compared to mine, for sure."

I could hear everything! From the echo in the bathroom, I could tell she was giving him a blow job, because she usually sucks on the head and makes it sound like a lollipop. So I heard that sound and automatically knew she was on her knees. The shower stopped, we heard some laughter, and they shouted for us to make room for them on the bed. When I saw them walking towards the bed, my girlfriend looked at me with a shocked and nervous expression, and I looked at Luis and couldn't believe it. His penis was quite a bit thinner than mine, but it was about 9 or 10 inches long.

I was lying on the bed, and Karina started giving me a blowjob. I must admit that she wasn't as skilled as my girlfriend, but that just made it all the more thrilling! Luis sat on the edge of the bed, and my girlfriend started giving him a blowjob straight away. It was the first time I had seen her with another man, and not just any man, but a guy with a huge dick! I could see in her face that she was enjoying giving him a BJ and how desperate she was to have him inside her. Apart from me, she had only had sex with a friend from college, and she confessed to me that he was about 5 inches long and thin. It was her first time with someone so big, and she was excited.

Karina jumped up, excited to get things started, and generously slathered me with lube before guiding me on an unforgettable ride. She was so tight! She began to move up and down. Then she started riding me slowly, and I just couldn't get enough of grabbing her ass! After a few minutes, Luci asked her to pass her the lube. Luis lay down on the other side of the bed, and I watched my girlfriend slowly sit down on him. It was a breeze for her to get it in because it was thinner than mine; the length was the only thing that gave her a bit of a challenge. There they were, the two college friends, riding each other's boyfriends, moaning; at times they looked at each other and kissed. I was so excited that I had to ask Karina to change to doggy style so I could see that ass in front of me! It hurt me to kill the moment, but I just couldn't wait!

I began to fuck her hard, grabbing her ass with one hand and her hair with the other. The sound of my balls slamming against her was so loud, it was incredible! After a few minutes, she asked me not to stop, to keep going, because she was about to come. She started moaning, and after her orgasm, I pulled out my cock and came in her ass. I felt like a winner for being the first to give someone else's girlfriend an orgasm.

My victory was short-lived: Luci had gotten into a reverse cowgirl position while Luis fucked her. I could see that huge penis going in and out of my girlfriend's pussy. I knew she loved that position and it made her come, but what I didn't imagine was the huge squirt that cock was going to get out of her, followed by a series of moans and tremors in her legs—it was absolutely amazing! When I thought she was done, I was thrilled to see Luis, with the help of his hand, put his penis back inside her, grab her arms, and continue fucking her in the same way, but way harder. My girlfriend's eyes rolled back, and she had not one but two more orgasms with squirting.

Karina and I lay down on our sides to watch them, and it was incredible! Luci stopped riding him and lay down on her stomach, exhausted, but Luis told her he wasn't finished yet. He lifted her ass and put her on all fours and began to fuck her again. Luci looked me in the eyes with a look of pure enjoyment, so I positioned myself so she could give me a blowjob while she was being penetrated doggy-style. I pulled Karina over to sit on my face, and we had the most amazing time! Feeling her weight on my face and hearing my girlfriend moan with my cock in her mouth—what a sensation! Luis told my girlfriend to turn around because he wanted to cum on her tits. As best I could, I moved my head to see her: there was my girlfriend, receiving another man's cum on her tits and then helping him get every last drop with her mouth. The four of us lay there, catching our breath, waiting to start the second round.

I can't wait to tell you the rest of the story and all the new things my girlfriend wanted to try!