Kardashian spent Saturday with his famous family, celebrating his 29th birthday. Though the majority of the Kardashian-Jenner clan and their significant others posed together for a group photo, neither Chyna nor Rob’s older sister Khloe Kardashian were present.
Khloe explained the reason behind her absence on Twitter, writing, "The kiddies got me sick. Feeling like s**t today. Take your vitamins world."
Chyna, who is also the ex of Kylie Jenner’s current boyfriend Tyga, and Rob started dating in January, and the pair have been pretty inseparable ever since.