What are your temps, I have found that my little ones do this when it gets a bit hot but also they do it sometimes to help remove shed
That sounds more like it, I didn't notice the other one. Silly me over complicating things, that's probably it.104f basking, 91 ish warm side, and 80f cool side!
Is she permanently housed with the male? As she's next to him in the pics I'd say she's puffing up at him.
EDIT- Also, does the male always have a black beard?