I'm sitting naked in my favourite armchair, my brain fried from too much beer, my girlfriend Kate kneeling on the floor about four feet away sucking on my best mate's cock whilst I stroke the hardest erection I've ever experienced and try to figure out once again how all this happened.
The details are hazy and dream-like, too much to drink on a night out, too much beer followed by too much vodka. We left the pub and the fresh air and alcohol hit me full on. The next thing I know we're on a bus, Kate sitting on Lee's lap feeding him her breasts, people around are staring but saying nothing. Then we're home at my flat, I head for the bedroom, strip, and pass out.
About an hour later I stumbled to the toilet for a piss and slowly realised that I could hear Lee and Katie's voices in the living room. I poked my head around the corner only to see them talking on the sofa, Kate resting her head on Lee's thighs, her hand inside his shirt pinching gently at his nipples. She's naked from the waist up and Lee's cupping her large breasts in his hand as they talk.
"We were just going to try and wake you up," she said, pressing Lee's hand even harder against her tits. "Do you mind?"
I shook my head. We'd spoken about this a lot of times, fantasising about what we'd do if the opportunity ever presented itself. She'd wanted Lee for months but nothing had happened, and I always wanted to see her fucked by another man. Now it seemed that both our dreams would come true and if she had to have sex with someone else, I couldn't pick a better man than Lee.
She came over to me and pulled me fully into the room and I tried uselessly to hide my growing erection from Lee, finally giving up and trying to act natural even though I was naked and hard. She stripped off the rest of her clothes and turned her attention to Lee, pulling off his shirt, quickly followed by his jeans and boxers.
Which is why I'm here. Watching her suck his cock and getting more turned on than I've ever been before in my life. I can't take my eyes off them, wanting to wank myself off so much, but knowing I have to make this last.