Gravity is not an enemy of a nice pair of legs.
Gravitating back to the title subject, I recall a Peter Sellers line from the hospital comedy, "Where Does it Hurt?". When his wife disparaged the attractions of his favorite nurse by saying, "without that brassiere they would sag to the floor", he responded, "On the contrary, it's the only thing preventing them from floating right up to the ceiling." ( Quote approximate. )