Having her guacamole and eating it too! Kourtney Kardashian, 38, puts her bottom on display as she enjoys vacation with Younes Bendjima, 24.<br /><br />Kourtney Kardashian is in the best shape of her life and she wants everyone to know it.<br />The eldest Kardashian, 38, showed a photo of her backside on Wednesday while in Punta Mita, Mexico with her beau Younes Bendjima, 24.<br />The reality TV star had on only a skimpy bikini as she dug into her guacamole with chips.<br /><br />This comes days after the two were spotted at the airport on Sunday.<br /><br />She had none of her three kids - Mason, Penelope and Reign - in tow. <br />
