Kim's Top Model Pre-Wedding Workout

With a summer wedding to NBA star Kris Humphries in the works, Kim Kardashian doesn't have much time to get slimmed down and toned up to her satisfaction.

The mega multi-tasker is fitting in fitness whenever she can, and is even incorporating workout buddies like Top Model host Heidi Klum.

After fabulously fulfilling her role as guest judge on the German supermodel's popular show, the two hit NYC's battery park for a 4-mile run!