I find a man cumming on me to be erotic in the extreme. I'm of the belief that all of sex is beautiful, wonderful, natural.
I think a big part of what makes the difference in whether or not you like to be cum on is how you think of his cum. To me, it is a precious gift, a symbol of his desire for me, a clear physical statement that he desires me, that I please him. I view it basically as the purest essence of his pleasure in what I am doing to him.
This idea hieghtens my pleasure of him cumming, period, be it in me, or on me. To be bathed in his desire for me, to feel him fill me with his joy at my touch, to feel the gift he's giving, the final, obvious, unmissable statement of desire and enjoyment...
While it's true he CAN cum without you, ask him sometime which he'd prefer...
