Celebrity Kim Kardashian West Celebrates Her Friend's Birthday with Booty-Baring Instagrams Kim Kardashian West posted a series of photos in revealing swimsuits By Gabrielle Olya Published on September 15, 2016 07:15 PM Share Tweet Pin Email Photo: SplashNews Well that’s one way to say “Happy Birthday!” Kim Kardashian West posted a tongue-in-cheek series of posts wishing her friend and assistant Stephanie Sheppard a happy birthday, and the reality star, 35, took the opportunity to show a lot of booty in the pics. “Happy Birthday @steph_shep I love this pic of us!” Kardashian West posted with a photo of herself leaned over a chair while wearing very tiny black swimsuit bottoms. “Seriously @steph_shep thanks for always having my back and eating all my left overs so they don’t go to waste!” she posted along with another butt-baring photo. “In all seriousness I’m going to be totally selfless for this one last post,” Kardashian West captioned a picture of herself bending over while wearing a revealing custom-made white one-piece swimsuit. “Thanks for being my main bitch! Happy Birthday!” RELATED VIDEO: The One Workout Move You Have to Do to Get Kim Kardashian’s Second Most Famous Asset And while Kardashian West is clearly embracing her curves, her little sister Khloé jokingly called herself “fat” in a video she posted to Snapchat on Thursday. The youngest Kardashian sister, 32, shared that she had been missing out on workouts with her personal trainer Don because he has been accompanying her brother-in-law Kanye West on tour. “Don has been on tour with Kanye, so I’m fat now, and it’s all because of Don and Kanye,” Kardashian, 32, Snapped. “But guess what?” she continued. “We’re going to get it back in one f—— day!” Kardashian then shared videos of her intense training session, so she is sure to snap back in no time!