Kourtney Kardashian flaunts her pert derriere as she vacations in Mexico
Kourtney Kardashian

Kourtney Kardashian is in the best shape of her life and she wants everyone to know it.

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The eldest Kardashian, 38, showed oof her backside on Wednesday while in Punta Mita, Mexico with her beau Younes Bendjima, 24.