Heidi Montag My Hills Aren't Big Enough

2/20/2010 6:03 AM PST BY TMZ STAFF
Heidi Montag 3.0 is still getting used to her new parts -- but she's already itching for an upgrade.

We got Heidi, her bosom buddies and Spencer Thursday night outside Dan Tana's, where it became clear she won't be done enhancing her chest until she can no longer stand upright.