Khloe Kardashian went on a wild bender earlier today on an L.A. freeway -- A FENDER BENDER -- accidentally ramming her Range Rover into an SUV ... but she looked damn good doing it ... in some curve-hugging workout clothes.

We're told it was a very very slight accident -- in fact, the damage was so insignificant ... neither Khloe nor the other driver even bothered to exchange insurance information.

Police were not called. Both drivers eventually got back into their cars and took off.