I hadn't intended to participate here, but the ol' 'breasts are for sexual attraction' argument baits me every time.
For a perfectly rational, alternative explanation, check out Elaine Morgan's lovely book, _Descent of Woman_. She explores that theory that during the pleistocene, when the world was burning up, we survived by living in the water. Think on how difficult it would be for a baby to nurse from flat nipples if it were floating, face up, in the water. She explains lots of things that make a hell of a lot more sense from an evolutionary standpoint than the explanation of 'sexual attraction.'
Love is that condition in which the happiness of another person is essential to your own...
Robert A. Heinlein
Me: female, bi, (formerly hinge of a vee)
with FirstBoyFriend (FBF)(moderately long-distance)
and no longer with CurrentBoyFriend (CBF)(who lives in the apartment building next door)