Taking off a sweaty sports bra after a workout. Only girls who work hard will get this. The ones that workout with their hair down, and a full face of makeup, who don't sweat. they will not fully understand.
A well-built physique is a status symbol. It reflects the hard work you've put in. You can't steal it; you can't borrow it & cannot hold on to it without constant work. It's from dedication, discipline self-respect and dignity.