Being a bull is all about attitude - my wife loves guys who take charge from the start, and put both of us in our proper place - me on the sidelines watching and her in bed doing whatever he wants and begging for more.
It wasn’t my first experience. I had a bf at the time, and had been having sex with him for about a year. (Ironically, I married him!). My RA was different in every way - race, physique, size, and sexual demands. He was my first black partner but definitely not my last.