Buddy may have an allergy....or an ear infection....or maybe they just need cleaning....My Golden Retriever, Lucky does that to my Border Collie, Blaze, when his allergies are flaring up....Isn't that weird? I think Lucky wants to help him ease his discomfort so he licks Blaze's ears until he turns them inside out and the little black hairs around the ears get so soaked....I just look at them like "what a couple of goofs" - I think one is trying to help the other's discomfort.....That's just a guess though.....