Just past infancy to...............

around 2-3 they start looking like "girls" to me and no-longer like asexual babies. ( Yes, I know I should be hitting the "evenflo" bottle more often in order to get my "baby goggles" properly set to see infant gender better. )

As for upper-range? Charlotte Rampling and Helen Mirren have still got it.

For me, though interest peaks around the physical transformations of the healthy female. Therefore the hawt 11 year old just at the start of puberty holds a particular fascination. Though also does the pregnant female form.

Dante