What's Going On With Christina Aguilera's Vagina in Her New Video?

The best of several hilarious moments in Christina Aguilera's "Your Body" video occurs at its 2:20 mark, when she pulls a handsome man she just played pool with into a bar bathroom stall and unleashes blue paint on him...somehow? I do not know what we are to glean from this. Is she sick? A squirter? Does she pee blue…