Bar Refaeli was turning up the heat on IG, setting the Internet on fire with a smokin’ hot video featuring some seriously saucy lingerie looks.

The supermodel was working those angles like rent was due, flaunting that killer bod in a series of sheer lace sets that leave little to the imagination.

Bar was mixing things up, proving that even in the world of lingerie, one-pieces can be just as sexy -- as long as visibility is involved, of course.

The catwalk queen was oozing body confidence ... prancing around, striking poses, and flipping her hair like she was born to be in front of the camera.

Need more lingerie action? Well, eyes up above -- there’s a whole gallery of gals in skimpy undergarments waiting for you!