I would say my interest in sex started when I was around 7 years, of age, at 12 - 13 I was played with by a few men, "some married" and boys around my age, at 14 I had explorative non penetration sex with a woman in her 20's, when I was 15 I went to live with a single uncle in his 40's for a year in another state, he was a bisexual stud, with him I experienced bisexual threesomes, foursomes and orgys with men and women, and I also had regular sex with his house keeper in her 60's who the uncle was also fucking, and I had sex with a mother and daughter, the mother knew I was fucking her daughter, the daughter did not know I was having it off with her mother (the uncle was also fucking the mother).
At 17 Back home I started having threessomes with a married couple in their 30's, I also met a 17 year old church going Catholic "virgin" as I found out, she was not a virgin by her 18th birthday, we married when we turned 21 (her father was very strict and would not let her marry untill she turned 21), we had our family when we were late 20's, in our early 30's we joined a nudist club where we soon found out their was a lot of swinging going on, it took some doing but I finally got the wife into swinging and M F M threeomes when we were 35, "her first time with another" man, I had no idea just how big a Pandora's box I was opening, we were players right up to our early 70's when the wife said enough was enough.
I think I can safely say I am not a virgin!
And I have no regrets what so ever.