[Rouge]

This will seem odd, but if I find my mouth getting dry, I deepthroat my man for a few moments. As well, I find that my mouth only gets dry when I'm focusing on licking, and have changed my style to more sucking while I lick (keeps the saliva in). You don't have to suck though, just keeping a seal around your man's c*ck with your lips will stop you from ever going dry.