New gf

Finally have a new gf but I can't get hard for her. I've tried to limit my habits and do nnn but keep failing. Would sucking a couple bbcs every now and then help with the cravings? I feel like that would be the best option so I don't feel racist, can have my fill of bbc and manage to get an erection... Even though I know I shouldn't be having sex in the first place. I just need a black man to steal her from me