Free images results:

Skirt pictures, stock photos and images


Paddling Royalty Free Stock Image
Author: Marilyna
Girl Royalty Free Stock Image
Author: Alexk
Pinup 6 Royalty Free Stock Photo
Author: Camptown
Pinup 7 Stock Photo
Author: Camptown
Elegance Stock Photos
Author: Stipples
Childhood Stock Photos
Author: Mkartal
Childhood Royalty Free Stock Images
Author: Mkartal
Girl Stock Image
Author: Ichtor

Also, here are some commercial RF-licensed images that match your search criteria:  
Mini skirt Stock Image
Author: Coprid