Sexual Dilemma

I'm a 60 something year old male and lately I've been having these thoughts and fantasies about sucking a man's cock. They're very vivid, erotic and very arousing. In fact, I have to masturbate to a very explosive orgasm when having these thoughts and fantasies. My dilemma is this, the male body does absolutely nothing as far as arousing me. In fact, it usually has the exact opposite effect. I've been looking at numerous cock photos on the internet and came to the conclusion that there is a very specific shape and size of cock that really gets me aroused. So if I ever decide to suck a cock it would have to be a very specific cock.