I've known I'm into older men basically my entire life. I was probably 10 when I first discovered porn. I wasn't into young guys... I wanted bears. I liked them big and hairy, with huge cocks. I would watch Pro Wrestling and imagined that I was the one getting manhandled by the sexy performers.
When I first started to understand my boners, I would fantasize about an older man using me to satisfy his needs. I once heard my mom talking about a "kept boy" and immediately googled what that was. My brain and my cock lit up. I didn't even care about the money part. The guy could be broke as a joke, as long as he was fucking me at his leisure six ways to Sunday. The thought of an older man keeping me on tap to use me whenever he wanted? Are you kidding me? That's the dream.
The fantasy boiled down to what is somewhere between extreme D/s (Dom/sub... but also Daddy/son) and full on Master/slave. The way I imagined it, while he was at work, I would be at home, naked (except for a collar, cock cage, and leather harness... occasionally, I'd wear a jock strap if my cage had been taken off), ensuring my body was the way he liked it, ensuring the house was clean and Daddy was coming home to a freshly cooked meal. To the public, he was my Dad and I was his son. We could invent some story about how I was an accident he just found out about or something... those details didn't matter to me. To anyone he wished to know, I was a receptacle for cock and cum. When he came home, I sucked his cock while he enjoyed his dinner. He would fuck me whenever and however he wanted. If he was horny in the middle of the night, he would just stick it in me--I would always be ready to take him.
Nobody would have to know that I wasn't his biological son. I was going to have enough of his DNA in me at either end that it didn't matter.
It also didn't matter if his friends used me. If his brothers/cousins used me. If he was having a party, I could be the entertainment. If someone wanted to borrow me for a few nights, or even rent me? The only consent needed would be his. Daddy would know what was best for me.
Let me reiterate: these were fantasies I had before I even hit puberty.
After puberty, it only became stronger. My first boyfriend was really hairy and I was a total slut for him... but he didn't really appreciate me calling him Daddy. In fact, I've still not yet found a guy I can call Daddy. I believe it is an honor close to religious experience to have an older guy put his load in either of my holes. I've never understood the ageist twinks when I was in college. "Eww that older guy hit on me!" What the fuck is wrong with you? Drop to your knees and suck that man dry like the God he is.
But then again... maybe I just have Daddy issues.