Secretly listening to my neighbour’s daughter get fucked. [MF]

We were invited over to a neighbour’s place for a Christmas party last night. Their daughter, Catherine, is home for a few weeks having moved to Australia to study a few months ago. I’m happily married but I have to be honest and say I really fancy her – she taps into the ‘younger woman’ fantasy I have. Tight body, cute face. If I were ten years younger (and single) I’d have been shooting my shot, no question. As it is, she brought her new boyfriend over with her.
I popped up to use the bathroom at one point and found a small queue. Knowing the neighbour’s house has the same layout as ours, I knew there would be a ‘Jack and Jill’ bathroom a little further down the hall. I went in through an open door and could see the bathroom was free (the light was on). Once inside I heard something that told me at once was going on in the bedroom on the other side of the closed door and discreetly turned to close and lock the door I’d entered through.
Her moans were quite clear. If she was making an effort to be discreet, it wasn’t a big effort. My dick was hard within seconds. I love overhearing sex. My mind raced, imagining what was going on based on the sounds I could hear. They began kissing, hard, and this stifled her moans somewhat. Seconds later, my imagination went into overdrive when I heard a voice.
*I think you’d better fuck me.*
It was Catherine, of course. Her moans began again shortly after and I stroked my cock while listening, imagining it was me inside her. The pace picked up and I heard what sounded like plenty of skin on skin action. In my mind, he had her bent over and filled her until he was balls deep. Lucky guy.
His orgasm was louder than hers and that triggered mine off too. I got cleared up with toilet paper and got out of there, heading into the now vacant main bathroom.
I chatted to them a couple of times that night and couldn’t help but think about what they’d gotten up to in what I assume was her bedroom.
I’ve spent all day jerking to her tight body via her social media pictures. I’m debating telling my wife what I heard to see what she thinks. Maybe I should leave out the part about listening in for so long…

Source: reddit.com/r/gonewildstories/comments/ziyh1x/secretly_listening_to_my_neighbours_daughter_get