As a man now in my late 60's, my interest in watching girl fights/catfights was something that started on its own. I did not seek it out. Even before puberty, I noticed that I felt a tingle in my pants whenever a girl fight or catfight popped up on the old black & white TV set. Let's be clear, there were very few girl fights back in the years of my youth, in the 1960's and 70's, but anytime I saw one, it was a turn-on. At puberty, the turn-on became an instant hard-on, and this was before I knew anything about sex. Note that there was no recording of TV in those years, so I had to watch everything when it came on. Movies like "One Million Years BC" and "From Russia With Love" were sexually engrossing because of their girl-fight scenes. I would check the TV istings to make sure I noted when they would be on so I wouldn't miss them. At the same time, I'd check the TV movie listings for any movie I didn't know about but seemed to have the potential for a girl fight, like women's prison movies, or girl-gang movies, anything of that sort, so great was my interest in girl fights/catfights. There was the British TV show "The Avengers" that would now and then feature a girl fight, so I'd watch this on a weekly basis in the hopes of catching one. Then, around 1973, a monthly wrestling magazine (Sports Review Wrestling) started featuring female battles with girls in 2-piece swimsuits in a standard living room setting. They called it apartment house wrestling. This, for me, was like hitting the jackpot, a new girl fight every month! I followed professional wrestling on TV back then so having wrestling magazines in my possession was not deemed unusual by my parents. Wrestling magazines also featured several ads for buying girl fight material. I purchased something only once whiie still living with my parents and was lucky enough to be the first at our mailbox when the material arrived giving me the opportuinity to hide it before anyone else saw it.
In the 1980's it was Triumph Studios among others that specialized in female fighting. I opened up a post-office box to be able to buy this stuff in secrecy.
It was about then that I met the woman that would go on to be my wife. We had 2 children together, a very healthy and normal sex life. Now and then, if there was a lull in our sex life, I would turn to my girl fight material to tide me over, so to speak. Today, all these years later, my wife's sex drive has greatly diminished, but mine has not. I masturbate to my girl-fight/catfight images and videos (I have a fairly large digital collection) and I actually feel fortunate that I still have this same, massive turn-on just as I did in my years of puberty. It has never left me. Why has this been such a sexual turn-on for me? I don't know. It's how I'm wired, and I'm obviously not alone. I own up to it, and, as I said, I'm grateful to have this fetish as it truly provides me with sexual gratification in my senior years. Note that all the stuff I watch from my collection is staged fighting. I do not watch real fights, or MMA, or anything of that sort, and I don't like anything bloody. What I watch are images and videos of female actors pretending to fight in photoshoots or videos. They don't always do a good job, but this is where fantasy kicks in.
Girl fights/catfights have been an absolutely essential part of my sexuality since my earliest memories. My first ejaculation as a kid was while watching a girl fight on TV, and then fantasizing about it. As I said earlier, I have the catfight fetish and I own it.The erotic/sexual dimension of a catfight is all that matters to me. There is something absolutely all-engrossing about two gorgeous girls (scantily clad, preferably topless) fighting for physical supremacy. It gives me such an incredible rush. As I view photos and/or videos I can't wait to see who of the two girls will win the fight, even when I know it in advance from from having previously viewed and re-viewed the same images/videos. The victory of one girl over the other girl at the end is the true climax. A subsequent victory pose is icing on the cake.