I enjoyed reading this thread, jumping in late here to add my two cents.
Outside of tickle fetish, I consider myself straight. But I have had several sessions with gay men in the past as a lee and I love it. Submitting to tickle torture, being tied helpless, is enjoyable for me regardless of the gender of the tickler. And the extra element of being "forced" into this situation by someone that I'm not otherwise sexually attracted to is really intense and pleasurable.
Hoping to set up some sessions soon to bring this fantasy to life for me again.