Fucked one of my wife’s bridesmaids the night before the wedding

So my wife and I have had the same rule the whole time we’ve been dating and it’s we can fuck around with other people as long as we tell each other before hand, well the night before our wedding I went out with some friends and some of the bridesmaids came with, specifically M, she is 5’1, nice perky tits and a sexy bubble butt. After a lot of drinks we ended up back at the house and most everyone was passed out. Me and M were on the bed watching tv and flirting and that escalated until she was deep throating my dick. We fucked for ages, she had such a tight pussy it felt like she was milking every last drop out of me I came all over her ass. Didn’t tell my wife until we were on our honeymoon but she loved it and had me fuck her while I told her the details. We’ve had a couple threesomes with M since then