Tik Tok’s highest earning star Addison Rae, 19, and her mega famous pal Kourtney Kardashian, 41, are enjoying the final days of summer! The duo, who have been inseparable this year amid the COVID-19 pandemic, posted a new snap of themselves soaking up the Los Angeles sunshine. “Two more days of summer,” the eldest Kardashian sis captioned her September 19 Instagram pic.