Ours has changed somewhat as I've moved through this lifestyle.
Before I started, hubby used to use my Doc Johnson dildo and pretend to be a black headmaster, I was dressed as slutty school girl being punished by 'Mr Johnson'.
Then as I started taking black cock, our fantasies changed into me humiliating hubby, saying he didn't compare to black guys and making him wear ladies underwear, nail varnish and taking Estrogen at one time! Fantasy went into feminising him and humiliation.
Now I'm moving into BDSM more, so I like to be handcuffed, nipple clamped and degraded my self while I'm looking for black BDSM master.
But we also still enjoy me dominating him at times, usually when I've met a guy and I wear the dominatrix stuff with hubby.
So it depends where you are in the lifestyle and what turns you on at this moment in time. X