Favorite spots have already all been said for kissing/nibbling: back of the neck, wrists and insides of elbows and knees, my entire back.
But add beard scruff and we're playing a new game entirely.
Beard scruff across the soles of my feet or across my ass is delightful.
Beard scruff on the insides of my thighs: OMG. And I don't mean in the obvious way...more like rubbing his face up and down the insides of my thighs until they quiver and I beg.