It's strange to me that she just started doing it, but if it makes you feel better my mum's cat Llewellyn is a licker too. When my mum pets him, he'll try to lick any part of her he can reach - including sleeves, shirts, hair, buttons... and if he can't access any part of her, he'll lick whatever's around... couch cushions, blankets, table surfaces, even the air. This summer when I go to live with my mom I'll have to get a video of him licking the air... it's hilarious.
Emma is beautiful, by the way! Her eyes are so striking.