Kim K disapproves sis Kylie's relationship with 'beau' Tyga

Kim Kardashian doesn't approve of her sister Kylie Jenner's relationship with rapper Tyga, it has been revealed.

According to sources, the reality TV star is in the dark as to whether the relationship is even physical, but her main concern is that one of her good friends is Blac Chyna, Tyga's baby mama, TMZ.com reported.

Insiders revealed that Kardashian feels like both Kylie and Tyga should have been more respectful and realized they were putting her in the middle of an impossible situation and even made her feeling clear with the pic at French Montana's birthday bash, where she cropped Tyga out of it.

Sources also said that the 33-year-old is saying that her sister in a way is violating "the code", which states that one shouldn't date the ex of someone who's close to them or a family member.

Insiders added that Kardashian has made it clear that she loves Kylie and has her back, but thinks that she is making a bad choice.