I've never told anyone

About 6 years ago I made a new friend at a new job I had started, I was renting a house from the owner of the company just down the road. My new friend was only 18 at the time and he was always telling me how his gf was always cheating on him and how they fought constantly. I had met her once and she was a super cute little petite blonde, very attractive. About a year into our friendship he got into a fight with his parents and needed a place to stay temporarily so I agreed to let him stay at my place with me and my wife. He partially moved in and was living there for about a week when his gf started coming by to hang out. Long story short I convinced her to smoke weed with me one day when he was gone and one thing led to another and we had sex on his bed. To this day it was the hottest sex I've ever had. He came home later and kept asking why she was acting so odd, he didn't know I smoked her out. Her and I never really talked about it but they went on and got married and seem to be doing great. I no longer talk to either of them but I still occasionally jack off to her Facebook pics and fantasize about her. I eventually had sex with another one of my friends girlfriends and his younger (than us) sister. No one knows about any of this. Just thought I'd share.