My first hint I could be a cuckold!!

Late 1980's. One of my first (what I considered true love) was a tall, big busted blonde, great figure and sexy as hell. Bec had a body to die for. she was some five years younger than me and had only had one boyfriend, how took her cherry. I stole her from him with no regret. We had a wild sex life, as we experimented most weekends, positions, toys ect. Had a lot of fun. After about a year, I noticed Bec becoming a bit distant, we still fucked all the time, but I could feel something was off. Bec worked at a local Leagues club and naturally got a lot of attention from the local playing group. Some big men amongst them, and Bec did her fair share of flirting. She told me not to worry as she was only after tips, which seemed fair enough to me. She did rake in the tips!! One night I was in the club waiting for her as we were going out after her shift. twenty minutes before she was due to finish, she called me over and said she was crook and couldn't go out after work. Time of the month and all that. So, I went and caught up with mates at the pub. Driving home, (before RBT's cursed us!!) I noticed Bec's car parked on the road, not her place or mine, so I decided to investigate. It was also before mobile phones were popular. I parked up the street and slowly walked back. There was a light on toward the rear of the house, so I crept down the side, my heart in my mouth, listening for something, anything. I didn't hear much, until I got to the window, when I heard a moan of pleasure,
another and another, fuck me was called out in passion. My Bec was getting fucked by someone, and she was enjoying it. My hard cock was throbbing for release; I undid my jeans and grabbed it as my cum erupted all over the wall. I had to stifle my moan as I listened to him say to my Bec, "Haven't you had a real man fuck you before?" She answered, "No Tony is only my second lover and his cock is half the size of you, now fuck me again, fill me with your cock and cum baby, I need it!!"
I crept down the path, a tear dripping down my cheek, with a throbbing hard on, and a desperate need to cum again and again, replaying what I had heard in my mind!! It was so horny I was so horny! I hated her, I loved her. I masturbated thinking of her being fucked hard by a real man for days, weeks, months! I still have a quick tug when I remember the incident!!!