Jennifer Aniston for Smart Water

Jennifer Aniston is posing once again for the Glaceau water  brand Smartwater.

The Baster star’s ad will be placed in national magazines and a giant  billboard over the 405 expressway in L.A. The ad reads, “We’re not ones to sip and tell, but Jen’s pretty into us (and our vapor distilled purity).”

Jen isn’t the only hot celeb posing for the bottled water.

New England Patriots quarterback Tom Brady also posed while doing an exercise workout.

Aniston’s last Smartwater billboard ad graced a seven story Hyatt Hotel  on Sunset Blvd.