Bring' back the bustier! Khloe Kardashian busted out a pink bustier -- and in fact, she was bustin' out of it!

The tall "blonde" wore a pink satin bustier with baggy boyfriend jeans to the studio, on Tuesday, carrying a vintage Louis Vuitton bag and wearing light pink suede pumps.

Khloe's been the butt (pun intended) of many, many jokes as of late regarding her enlarged lips. The reality TV star recently clapped back at fans who criticize her for going overboard with lip injections. Khlo posted a sponsored photo on Instagram for a skin care line but commenters were quick to point out she's gone "overboard with the fillers." Apparently KK wasn't too happy -- or, more likely, her sponsors weren't too keen on the criticism -- so she turned off the comments on the post. Ouch!