Phil, poor Phil, you're nearly the only breathing being who Rosie didn't immediately find droolworthy. From Rosie: "gfgfgfgfhhy", and from Cosmo, "hbn m bnnnnn". I can't quite understand them, but Rosie might mean, "Master, what the? Phil's the living end!", or something like that, and Cosmo's just being agreeable. They're now licking each other, so I guess they're finding each other agreeable.