My most exciting BlowJobs occur when my wife sucks on me to the point of orgasm, then asks me to cum on her tits, so I guess it really depends on what the woman really wants. If she wants to watch me cum, happy to do that for her. If she wants me to cum in her mouth, great. Doing something that she doesn't wants to do, or finds repulsive, doesn't do much for the mood afterwards or the next sex session. I prefer to take the long view.