First time I discovered my love for cock

At the time, I had never had neither a gay nor bi experience, was 23 yrs old, & my gf at the time, (who was a real cock loving whore), brought up the idea of us checking out a porn cinema that we had passed by several times on Bloor St. near downtown Toronto. I figured sure, why not, mind you I had NO IDEA of what was inside other than figuring it would be a porno on a theater screen. Having entered inside, first thing I noticed was there was plenty of older fellas, (& yes, just fellas), so nonetheless, we made our way inside and sat off to side, closer to the front where there was pretty much nobody. After watching for a bit, me & my gal got down to business as we began to fondle one another. Shorty thereafter, a fella sat about 4 or 5 seats away & pulled out his cock in this very dark theatre, must admit it arroused both of us, and within a few minutes he says, "can I watch you fuck her", to which I had no problem with, neither did my gal. So as I began thrusting in & out of her, his cock was throbbing hard as he stroked and watched, and then he asked one last question, "when your ready, can you shoot in my mouth, if ya don't mind?", I'll admit, I was both shocked & yet very intrigued, I looked at my gal, and could tell by the huge smile on her face, she LOVED the idea too, so I told him yes, & just then he kneels right next to our action, and not even 10 seconds went by when I was pulsating, throbbing and ready to unload ....and then it happened, I pulled out and he sucked me to completion and swallowed, WOW !!!! Thus ended our night there as we left right afterwards, but can you guess what I did next available chance? Yup, there I went two nights later, and thus beginning my lust fir porn cinemas, although I had never at the time sucked anyone else, just had plenty of takers who LOVED to suck me to completion, although I did partake in mutual Jo's, but that one episode which got it started, and the rest, well, you can figure out how it went.... LOTSA FUN !!!