I never actually had one. I have no idea why but I've felt like I've always had a massive aversion to anything sexual or suggestive, especially when I was younger, and this is despite the fact that I wasn't very religious or had strict parents.
In fact, when I did come across pornographic content for the first time when I was about 6-7 (which was in my parent's PC for some reason? like what the fuck), the only thing I felt was genuine perplexity as to why anyone would willingly film themselves naked, like have they had no shame?
But I did have something that is pretty much the opposite of this, and that was when wee 11-year-old me came across a pride parade and took a proper look at one of them Drag "Queens" who here clearly just men in hideous makeup, a beard, and fetish gears, and that's when I said "Yes! My ideology from now on is the opposite of whatever this is!"