drool (all) over someone or something
1. . Lit. to drip saliva on someone or something. You're drooling all over my plate! The dog drooled all over my hand.
2. Fig. to envy or desire someone or something. (Alludes to drooling from hunger.) The boys stood there, drooling over the fancy sports car. Wally Wilson spent many hours drooling over photographs of Marilyn.