Cleavage

Will asked me today just out of the blue while we were quietly driving in the car somewhere.... "Why does Elizabeth have that big crack in between her chest right in the middle of those two fat things?" Took me a minute to realize what he was talking about and then I explained to him what "cleavage" was and why his mommy doesn't have any. Then he said thoughtfully, "You mean those are her breasts that I can see beside the crack?" I replied that they were. Then a minute later he said, "Why does it seem like all the women at school have cleavage?" I told him that was an interesting observation and we had a little discussion about body types and differences.