Kim Kardashian/Instagram Kim Kardashian celebrated a major social media milestone by striking one of her most famous poses: the belfie. After crossing the threshold of more than 225 million followers on Instagram, which cements her spot as the 7th most-followed person on Instagram (following the likes of Cristiano Ronaldo, Ariana Grande and sister Kylie Jenner), Kardashian, 40, gave fans the gift of not one, but two sexy bikini photos. "225 MIL LOVE U FOR LIFE," the Keeping Up with the Kardashians star captioned the two sexy swimsuit pics snapped at her mom Kris Jenner's Palm Springs home. In the first, more modest photo, Kardashian sat on a lounge chair by the pool with her left side angled toward the camera. She threw her arm over her head and looked up at the sky while showing off a hint of side-butt in the teeny string thong bikini bottoms. But it's the second photo that Kardashian puts it all on display. Snapped from another angle so her backside faces th...