Ali Lohan, 16, dons a couple of skimpy dresses in new ads for big sister Lindsay's 6126 clothing line and Us Weekly found the photos.
The Kardashians' little sister Kendall, 14, is also an aspiring model and has caused a stir with her bikini photos.
Lindsay appears in court Friday because of her failed drug tests and may go directly to jail.
SUBSCRIBE AND FOLLOW
Get top stories and blog posts emailed to me each day. Newsletters may offer personalized content or advertisements.Learn more