back when I was 13 or so and just started to come here (yeah I was underage, I was also a kid with high speed internet for the first time who just discovered I wasn't the only person on earth who got turned on by tickling) F/m was an instant boner killer, because there was guy there, I was looking at a guy! My intense hatred mellowed over time, and I just became indifferent. Only a couple years ago did I discover that I LOVE F/M. That is, I love f/m art, as long as the guy looks enough like me that I can imagine myself in his place, in which case it is possibly my favorite kind of tickling.
I have no desire to see another man tickled. I'm straight, and I find it gross to see another naked man. However, it turns out I'm a bit of a submissive. If I myself am being tickled, its overwhelmingly erotic. Luckily I'm pretty generic looking, so Its easy to just kind of mentally photoshop myself in to most pics. there is a few f/m videos that I have really enjoyed, but The guy has a mask or his face isn't visible in all of them and his body is relatively similar to mine. I think the popularity of the "so & so tickles your feet" perspective videos confirm that I'm not the only man who feels this way.