Kris Jenner is angry with Tyga after he asked Caitlyn, formerly known as Bruce, to walk their daughter Kylie down the aisle, a source told Hollywood Life. Reports of feud between Kris and Caitlyn surfaced after the former Olympian came out as transgender in April.

According to the report, Tyga has also taken Caitlyn’s permission to marry Kylie. Previously, Caitlyn had expressed concern over Kylie and Tyga’s relationship after reports claimed that the 17-year-old’s boyfriend cheated on her with transgender model Mia Isabella. A recent report said that Caitlyn is worried that Tyga is manipulating her daughter.

“Kris is furious, absolutely furious at Tyga for asking Caitlyn to walk Kylie down the aisle when the time comes for them to get married,” the source told Hollywood Life. “She thinks Tyga’s lost his mind and compromised their friendship. She feels betrayed by him, especially since she’s been his biggest supporter and friend for years. He should know better than this -- Kris is really hurt by his actions.”

Kris has reportedly made it clear that “if there’s any woman who’s going to walk Kylie down the aisle, it’s going to be her mother. And that’s Kris,” the source said.

Kris now reportedly thinks that she is the perfect person to stand beside Kylie when she gets married to Tyga. “She will not budge on this,” the source said. “Kris will have to be on the other side of the dirt if Caitlyn thinks she’s giving Kylie away in marriage."

On Thursday, Kris praised Caitlyn’s speech at the 2015 ESPY Awards where the 65-year-old was honored with the Arthur Ashe Courage Award. Kris was not present at the Microsoft Theater in Los Angeles Wednesday night to watch Caitlyn accept the award, but reportedly said that “it was amazing and very brave.”

Kylie and Tyga have been going strong despite the recent cheating rumors, and according to some reports, the 25-year-old rapper is waiting for his girlfriend to turn 18 so that he can propose to her for marriage.