I don't think "no-sex" = "true art of BDSM" ... like really, I didn't get that memo and I've been in the scene since I was 19. Just because one "puts out" doesn't mean they don't know how to weld a flogger or tie your ass up good. As a sub, the Dom takes what s/he wants when they want and if they want, one's job as a sub is to please the Mistress/Master.... As a Dom, I get what I want when I want it or you get turfed, more where you came from.
Personally if your the top and you want a goddamn BJ, you just fucking order your bitch to do it, a good bitch listens
And Edifice, I think it makes sense for Dick to tell Bush what to do....