MJM with his wife in a train compartment

My wife and I have been married for several years now, and our sex life has always been fantastic. We've tried everything: role-playing, sex toys, and even invited a third party a couple of times for variety. But recently, something happened that turned everything upside down. It happened on a train during our trip south, and I still remember it with a thrill. We bought tickets for a sleeper compartment on the night train. We thought we'd travel alone, relax, maybe even have sex to the sound of the wheels. But when we boarded the train, we saw a guy already sitting in our compartment—a burly guy, about thirty, with a short haircut. He introduced himself as Sergey and said he was traveling to the same city for work. My wife and I exchanged glances—she in a tight dress, me in jeans—and immediately felt a slight spark. Sergey was chatty and offered to get a bottle of cognac from his bag to while away the time. The train pulled out, and we started chatting. First, about the weather and work, then the conversation turned personal. My wife, Katya, loves to flirt, and I noticed the way she looked at Sergey—with interest, suggestively. I wasn't jealous; on the contrary, it was a turn-on. After a couple of glasses of cognac, the atmosphere heated up. Sergey told me he'd recently broken up with his girlfriend and was missing some feminine warmth. Katya laughed and said, "Well, there's just one woman here who wouldn't mind sharing some warmth." I smiled and winked—we'd long discussed MFM fantasies, but we'd never tried it in such a spontaneous place. Sergey didn't lose his cool. He moved closer to Katya on the lower bunk, and I saw his hand slide down her thigh. She didn't pull away, but instead turned to me and whispered, "Do you mind, darling?" I shook my head, feeling my cock getting hard. It was all happening like in a movie: the train was rocking, it was dark outside, and the three of us were in the compartment. Sergey started kissing Katya's neck, his hands went under her dress, and she moaned softly. I sat across from her and watched as he took off her panties and then unzipped his fly. Katya lay down on the bunk, spread her legs, and Sergey entered her gently. She arched, grabbed my hand, and pulled me closer. "Come on," she whispered. I didn't wait—I knelt by the bunk, pulled out my cock, and brought it to her mouth. She began sucking enthusiastically while Sergey fucked her pussy. The sound of the train bukvoeb.run drowned out our moans, but I felt the compartment fill with the scent of sex. Sergey sped up, his balls slapping her ass, and Katya swallowed my cock deeper. Then we switched places. I lay down on the bunk, Katya sat on top of me, and her pussy was already wet from Sergey. She bounced on me, and he stood to the side and stuck his cock in her mouth. I watched his shaft disappear between her lips, and it was wildly arousing. We fucked her like that for about twenty minutes, switching roles. Once, Sergey took her from behind while she was sucking me, and I felt her body tremble with orgasm. She came first, screaming softly, but then Sergey and I couldn't take it anymore—he came on her ass, and I came in her mouth. We took a break, finished our cognac, and laughed about the situation. "I never thought something like this would happen on a train," Sergey said. Katya snuggled close to me and whispered, "Thank you for letting me." But it didn't end there. That night, when everyone was asleep, she woke me and Sergey, and we had a second round. This time, she lay between us, and we fucked her simultaneously—I in the ass, he in the pussy. That morning, as the train pulled into the station, we exchanged numbers. Sergey got out first, winking: "If anything happens, call me." Katya and I stayed in the compartment, hugged, and kissed. It was our best vacation, and now we're planning to do something similar again. Life is too short not to try something new.