Spend a few hours on this, or any number of fetish sites, and you will be forced to conclude that the range of conduct which comprises human sexuality is most poorly described by the bilateral terms of homosexual or heterosexual. I'm rather limited by comparison to others on this site, but even so ... women have asked me to arrange gang play-rapes for them (not gang "bangs"), and k9 encounters, and Howard Stern has informed the world that men as well are prone to shove sink traps and tool boxes up their asses. Some have enjoyed the sensation of wet concrete in the rectum. The Internet abounds with video clips involving snakes and horses in use by both genders for sex. Various yellow, brown, and roman showers round out the conduct.
Unlike so many others, you appear to limit your potential partners to "human males." And because of that self-limitation you wonder if you are homo?
Personally, sir, I DO NOT regard you as homo. But then, I do not regard our species as either hetro or homo. Are you hetero or homo because you use a pipewrench? A cucumber? Because you insert metal shafts into your urethra? Then electrify or vibrate them? Because you enjoy being milked without orgasm? Or having your orgasm ruined? Being kicked in the genitals? Such activities defy classification, but we still regard them as "Sexual".
There is a phrase "He'd fuck a woodpile if he thought there was a snake in it." To me, the phrase is not humorous, but reflects the insight and wisdom of a careful observer.
Go find a male partner, you'll fit right in with the rest of us. Square it with your wife first.