Kim Kardashian gives fans a dose of nostalgia this summer as she shares throwback photos of herself, Kourtney, Khloé, and their brother, Rob hanging out together in a pool. The old snaps now have fans begging for Rob’s return to reality TV and the star has reportedly “turned a corner” when it comes to his lifestyle. Rob Kardashian enjoyed some reality TV stardom during his days on Keeping Up With the Kardashians. However, for many years he’s been keeping a low profile and staying out of the media spotlight. The rest of the Kar-Jenner family are still appearing on Hulu‘s The Kardashians these d…