I heard my fiance having sex with another man. I got drunk and woke up in the basement. Still drunk, I went upstairs, everyone was gone who had been there earlier. I drank a big glass of water and went upstairs. I heard sex going on in our spare bed room where her brother stayed when he lived with us. Now it was just a bed and some furniture and someone was in there fucking. At first I laughed to myself wondering who was getting laid and who he was fucking then I realized the sounds the girl was making sounded familiar as in sounded like my Lauren.

Lauren is smart and hot, not playboy hot but fit hot. She's tall, firm, small firm boobs and a rock hard ass and a beautiful waxed pussy. She's very sexual. Loves sucking my cock, loves spreading her legs as wide as she can to rub her pussy and show off, to ride my dick and damn she loves hard doggie fucking both in her pussy and her ass.

So I hear her and some guy fucking, the same moans, groans, squeeks and squeals she makes with me. The same energetic bed bouncing and gasping I love about her. I stood there crushed, listening to the bodies slapping, knowing his cock was inside her amazing pussy, hearing her cum, hearing her talking dirty, telling him to fuck her pussy, suck her tits, let her suck his cock, cum in her and he did. He moaned his way up to a grunting orgasm as he came inside her.

As sexual as she had always been, she had also always been dead set against cheating. Always. She hated cheaters, hated people who cheated, was very judgmental and would even get upset with me for being tolerant when people we know were found out cheating. But here she was, in bed with another man fucking her & cumming in her, in her pussy that's supposed to be mine, only mine.

I walked right past the room without being seen and went to bed. I was drunk, upset and didn't know what to do. I heard whispers, a male saying one more time he's still passed out, then quiet, then the man softly telling her how good she sucked, moaning, picturing her sucking another man's cock. Then, feeling myself getting hard, touching myself, hurt but horny. I think if I was sober I would have cum listening to her blow him then the sound of him fucking her again, her cumming on his cock again.

I woke up and it was daylight. She was beside me. I was so hung over. I went to the bathroom. No one else was there. The spare bed was made and neat just as it had been since her brother moved out. I joined her in bed. She snuggled up and asked how I felt. What time I came to bed? She was as normal as could be. She snuggled up and played with my dick, made me hard, wet my dick with a nice wet suck then jerked me. While she was jerking me, she had her head on my chest kissing me while inside I fantasized about her fucking whoever it was she had fucked. She stroked me until until I came leaned down to gobble up my load and I shuddered through a prolonged orgasm. We went back to sleep for a few more house.

Now it's been awhile and I'm not so certain she cheated. She never seemed out of sorts wondering if I'd seen or anything. Did I dream it? Was it a drunken fantasy? I think she did it but I was so drunk and she seems so normal. I love her and I'm not going to accuse her or say anything about what I saw/imagined. The thing that's starting to bother me more now than her cheating is it turns me on now. It still hurts but it also makes me so hard. I jerk off thinking about what went on in that room, I fuck her thinking of someone else fucking her while I watch. I find myself wondering which of my friends was the one who fucked her, who sucked on her tits, who played with her pussy, whose cock was inside her making her cum, spurting his cum inside her. Every time I wonder, I get hard and end up jerking off or fucking her as hard as I can. The orgasms are tremendous when the fantasy of her taking another man's cum are strongest.