This isn’t the first time Lindsay Lohan has hired her little sister Ali to model her 6126 clothing collection, but it definitely is the sexiest! Breaking Celebrity News has obtained a series of shocking photos from Lindsay’s Spring/Summer 2011 6126 advertising campaign staring her 16-year-old sister, where the beautiful brunette models her skimpy and body-baring designs.

The not-yet-legal brunette beauty poses provocatively in Lohan’s overtly sexy designs, exposing lots of skin---and even her bra and panties.