From beginning to now

I consider myself a bi mwm, although all my sexual activities have been with guys over the past decade.
I discovered how good it felt to rub my cock when I was about 9 or 10 years old, years before I actually shoot cum. I did it every opportunity I had. Some years later at about 16, my brother and I were home alone one day (both parents were at work) so I asked him if he ever jacked off. He replied that he didn’t know what that was. That didn’t surprise me as he was two years younger than me. I told him I would show him. So I stripped and began stroking my cock. I told him to try it, so he dropped his pants and began rubbing his dick. I told to wrap his fingers around it and stroke it up and down. He did and his cock started to get hard. I was shocked to see his was longer and thicker than mine. We both jacked off until we came. We repeated this every time we were home alone.
After a month or so, while home alone again, we were jacking off together and I asked if wanted to play a game called “Robot.” He asked what that was and I told him for 2 minutes we had to do whatever the other said. I told him to stroke my dick. He did. After two minutes he stopped and told me to stroke him. I did. Next I told him to kiss and lick my cock. He did and said your turn. From then we just would 69 as our game.
I graduated high school and left home. I married and lived a straight life, raised our kids but the memories of our “game “ never really left me. About a decade ago, my wife lost all interest in sex. After some wrestling with my bisexual thoughts, I connected with a guy on Craigslist that was offering a blow job/no reception. It ended up with us in a 69, sucking each other off. I must admit that when he cumming in my mouth I loved it.
Since then I’ve sucked a lot of cock and bottomed a few times. Although I like getting fucked, I love sucking cock. I love the feel and taste of cum in my mouth. I’d love to suck cock all day if I had the opportunity. May I am truly gay or maybe I’m just an old guy that love sucking cock.