[Oh, this? I just molted like every half-bird person does. Y'know, no big deal.

...is what she wants to say. However, she's not sure that would alleviate the awkwardness of this whole situation any. So, instead, nervous shifting of her makeshift sheet covering as she attempts to form a coherent explanation is ago!]

Yes! I- I can explain! You see, I molted. Which is where I lose all my feathers for a few days or so until they grow back. It usually happens in the Spring and the Fall a-and I thought I had more time before it happened and that you wouldn't have to see me like this... but I guess I was wrong about that. [Her voice trails off as she gives him a sheepish, lopsided smile. Hopefully that made enough sense.]