The first time I got dominated was 20 years ago, and it happened unplanned one afternoon, in my apartment.
I had been gently pursuing sex from a 25 year old man, named Vu, for a few months without any success. We had become friends, and while it felt he wasn't necessarily rejecting me, he also wasn't responding sexually. He was slim, boyish, also girlish, with average looks. I think most people would make the mistake of stereotyping him as a bottom, and probably as someone who would be a submissive partner. Some of that would likely be racial profiling, but also his obvious femininity and petite size. And it turned out he was hung like a hamster. His cock and balls made him look like an underdeveloped teenager.
But there was something about him, and he did seem interested in me on some level. So we were in my living room having coffee one day when he eventually explained (after yet another come on from me) that he wasn't responding sexually to me because he was a Dom. My eyebrows raised a little at that point, but that didn't bother him in the slightest.
I admitted some curiosity about Dom/sub sex, but also that I knew nothing about it beyond the obvious stereotypes, so I asked him how he went about dominating a guy who was bigger than himself. I was stuck in cliches and ignorance.
To my surprise, he invited me to suck his cock, right then and there, so long as I agreed to follow his instructions on how to do it. I thought this was too good to be true. I hadn't gotten laid in a few weeks, and had become convinced I was never going to get Vu into bed, much less today. This sudden reversal of fortunes was wonderful. I was happy to suck him because I figured it would end up with me flipping him over and plowing his tiny little hole while he squealed about me being too big.
We got onto my bed. He told me to strip naked while he unbuttoned his pants.
"Don't you want to get naked too?" I asked.
"This is all on my terms", he replied. "You agreed that you would follow my instructions. If not, put your clothes back on right now."
To this day I cannot discern what it was about the way in which he said that, but I got instantly hard.
"Sounds good", I said. "What would you like me to do?"
For the next few minutes he gave me a few simple commands on how to suck his cock. It was very easy to take him entirely in my mouth because of just how small he was, even fully erect. Of course I was thinking this was going very well because he was rock hard almost immediately. Him having such a small cock meant I was never going to choke on it, and that I wasn't going to have to work very hard to make him cum. So what if he looked a tad too teenage? At least he had a bush of pubic hair.
I had just begun to taste some pre-cum when he had me move onto licking his balls. They were also tiny and had started to shrink up into his taint. All I could do was lick, as he had instructed, because there wasn't enough there for me to hold in my mouth.
"Just lick the left one only", said Vu, and so I did.
I was starting to get bored. As horny as I'd been at the unexpected offer of sex, I wasn't finding this to be much of a turn on after all. So pretty soon I stopped licking the nub of what was theoretically his left testicle. I was thinking I might go back to his cock in hopes of more pre-cum.
He immediately asked, "Did I say that you could stop doing that?" And again there was this indescribable, inexplicable way he said it, that got me hard again. I couldn't figure it out then. I still can't now.
"Stay here and lie face down on the bed" he said. "I'm going to get some things from my bag. Spread-eagle yourself and then do not move."
He didn't need to repeat his threat of ending the session. I complied willingly because I was curious about what was going to happen, but also because I was quickly realizing that I really liked having a guy tell me specifically what to do.