It's not just women who love their nipples licked!
Men can get aroused from a saucy spot of nipple play, too. We're saying you can make a guy hard from licking his nipples, but it can be a great added stimulus while stroking his balls and shaft.
Try making a wide circle with the flat of your tongue around the outside of your man's aerola, then gently bite or flick the peak of his nipple. Doing this while giving him a hand-job is a double pleasure whammy for your guy!