After finally getting access to pornography it only took a few weeks to my 10yo mind to get envious of these women moaning open-mouthed from having their asshole pounded to oblivion. I wanted to cum like them, as hard as them. Naively I thought the anus could orgasm like a pussy and I wanted to experience that.
Little did I know that men actually can orgasm with the butt, more specifically with their prostate. A few years if trial and errors and then boom, picrel.
Moaned open-mouthed like a little bitch when it happened.