I think a female's body is somewhere in the top 1 of most attractive parts of a female's body. IMHO. And accentuating them with the right nothing is just all the better.
The way she crouches her back reminds me of the time I had my back stay like that for four hours working on something... Thinking about it makes my back hurt.
A. "Don't mind me, just keep going..." pull out camera
B. Walk out awkwardly
C. Jump in with them.
D. Ignore and do what you needed to do in the first place