27 with a friend of my mom who was in her early-50s. I was very happy because sex felt so much better than masturbating, I performed well, and the experience was much more simple than I had worried about. She was a very sweet and gentle woman who made the whole experience as nurturing as first time sex can be, I guess. I did feel disappointed because afterwards I felt no different than before, nothing had really changed for me as a person. I also felt sad at all the years I had wasted and anxiety I went through over what was a basic function. Sort of like... Nice, but that's it? So I guess happiness and relief, but also being underwhelmed and disappointed with myself.