I like the backs of necks best:-) they can be really beautiful.

A naked back & butt can be very inspiring, too.

I think female genitalia is so much nicer to look at than that of males, which hangs as beautifully as a strangled chicken.

I beg to differ. The male package is so nice and tidy, all in one place, simple and with a consistent look. The female parts are so much more complicated, especially on the inside.
But then again, maybe that symbolizes the typical man-woman character difference. :-P

Still, the most amazing part to me is how well the two always fit together! Don't forget that.