Kim Kardashian West may have just starred in the music video for Fergie’s new single “M.I.L.F. $”, but big sister Kourtney Kardashian is proving once again that the milk-showering mom-of-two isn’t the only member of the Kardashian clan worthy of “MILF” status.

The eldest Kardashian sister made a splash yesterday, flaunting her incredible physique in a plunging one-piece swimsuit in Miami. The low-cut La Perla design showed off the stunner’s best assets, highlighting her trim waist and toned figure.