When I was 20, my gf knew I loved to get my cock sucked. One day, she told me to jack off in front of her. When I came she told me to lick it up. I said I couldn't do it. She told me to eat my cum or she'd never give me a blowjob again. I didn't, and she never sucked me again. Soon after she cheated on me and we broke up. A month later she was telling me that she thinks she is bi and how she gets pussy eaten by a girl and fucked by her new bf. She looked at me and said, "I know how much you like a blow job. Have you ever thought of sucking dick? I know there must be plenty of guys you could swap blowjobs with."
Ten years later, my gf at the time was a prude and wouldn't suck my cock, so I had to find it elsewhere. I thought about what my hot gf when I was 20 said and started sucking cock at 30, going on adult finder and craigslist to find bj swap buddies. I'd usually go on craiglist when on business travels - I'd like to see how many guys I could get to swap bjs with (one-on-one) when away from home.
Out of all the cocks I've sucked, I have only sucked one black dick, and I wouldn't call it a BBC. He came to my hotel room (didn't know he was black, and didn't care one way or another) while I was out of town on business. We groped each other and pulled each other's pants off. I was clearly bigger (both in height and penis size) than him and he got on his knees to suck my cock. After getting super aroused from his blowjob, I pushed him onto the chair, got between his thick legs and sucked his dick. I'd sucked much bigger and hotter cocks before, but liked sucking it nonetheless.
The best moment was when we got on the bed and 69ed, lying on our sides. I could take all his black dick in my mouth, and he started to hold my head and fuck my face. At one point he stopped sucking my cock and got verbal while holding my head on his black dick. It was hot to suck his black dick and be told to suck it, told to not stop, told to take his cum in my mouth. My cock was throbbing when he blew his load in my mouth and as I sucked his black dick clean. And it got hotter when he told me to keep sucking on his black dick and that he wanted to watch me jack off with his black dick in my mouth. That was one of the best orgasms I've had. It wasn't the size or color of his dick that made it hot, it was that flip from him being submissive at first and taking control in the end. I think that experience made me understand why so many women get off on being taken by a black guy.