Do you think your curiosity about sucking a cock would be satisfied if you were able to suck on your own cock and cum in your mouth. I read about a lot of married guys who have this fantasy, but have no desire to be close with a guy, other than sucking his cock, just out of curiosity.
I never understood the desire to suck cock and not be into guys. Why not just get a Keilbasa and suck that, then you could eat it later. I have been bi identified for decades so I can't really relate to "straight" guys who want to suck cock. I like sucking cock, but I also suck the guys ball and lick his nipples and other body parts - in other words make love to him. But I don't think sucking your own cock would alleviate any curiousity (if you could do it comfortably) It has to be another man's cock that you feel go into your throat to really experience what it is like.
I think it only served to heighten my curiosity. I don't think I'm old but when I became older & less flexible & unable to suck my own cock anymore, I sure did move on to someone elses. I'm not married nor do I consider myself gay, just bi but I'm not out. I have no desire to be "close" with a guy, just suck him off.