My boy will also lick me, or anyone else on that part, outrageously until our clothes have wet grooming marks on them. He randomly licks pillows and beds and etc. etc...
He will lower his head when i get to petting him, and if i play around with\massage his hind quarters\feet he will really lick ANYTHING in front of him. His lickiness intensifids and then he flees.
I guess he enjoys it up to some point and hates the rest?
When i have something tasty in my hands or mouth, he'll lick, paw and nudge at me, trying to get to the good bits i may give. When i won't, he'll stand up, sniff me and then give me a rabbit kiss straight on the lips, tickling me with his tongue and whiskers.
I find that a very weird and amusing way to try and be attractive.. haha