This is Stephanie, who is one half of the sculpture titled "Stephanie and Shy". The other half a horse, which I'm assuming is the one named Shy. Neither are wearing clothes. The sculpture was created by Robert Graham in 1980-81.
I do realize this would be a highly inappropriate photo if it were of a real person. I thought the reflection was cool, though, made possible by today's rain.
By the way, are you on Twitter? I am, and I tweet occasionally. Follow me: @jawsnap.