The arch of her back. The look on her face. The color coordinated pink top and bikini panties. Exquisitely spankable.
For similar pix and teasingly titillating naughtyness, perv on over to the recently revitalized DDR, featuring the greatest collection of short-shorts images ever created in the history of the Interweb:
If anyone is interested in trading links with DDR, feel free to shoot me an email here.