Audrina Goes Down... Under

8/14/2008 2:46 PM PDT BY TMZ STAFF
Sure, we're used to catching Audrina walking the streets -- but now she's got a new companion. The John Doe is Aussie BMX racer Corey Bohan - who apparently prefers Audrina's hills over Australia's deserts. Sorry Justin Bobby - looks like Corey's riding that bike now.