Really young, maybe in the 6th grade, probably after I discovered what masturbation was and how to do it, I started to notice that in a lot of mainstream movies, usually PG or PG-13 ones, there were sometimes scenes and subtle hints given in the film when sex was implied, whether it was intercourse, oral, handjob or whatever (though oral was my and still is personal fav) and they were all done off-screen or at least to a point where the dick or the act wasn't fully visible. Even after I discovered porn, just the sheer tease and excitement of non-visible blowjobs, or fellating inanimate objects just gives me the greatest fucking boner in existence is something that nudity and hardcore porn can't replace.
It's really too bad that my ultra-specific fetish isn't as readily available as a lot of other obscure fetishes. Maybe by lurking hard enough through anime pics, yeah, but rarely do I find it in done through live action stuff.