Paris Hilton river viiperi nipples boobs tank top blonde sunglasses airport lax

Paris Hilton and boyfriend River Viiperi arrived at LAX early this morning to catch a flight to South America.

The heiress Tweeted: "On the plane taking off to #Colombia with @RiverViiperi. Excited for my runway show for my handbag line & my @PHPurses store opening."

Hope she mixes her business with pleasure -- a South American getaway sounds HOT!