I can only speak about my wife and she has not (afaik) been with a black man (yet) but I have a lot of IR porn and we engage in a bit of role playing while watching it. Movies where the men talk thuggish just shuts down the fun times while ones where the men are plain spoken or just don’t talk?
She cums hard watching them while being fucked or fucking herself with a big black dildo, I mean really, really hard. I love to watch her when she gets hot like that so I try not to show any movies where the guy(s) talk like a thug.