Bruce Jenner Dating Kris Jenner’s Best Friend Ronda Kamihira

Author: Janell White

Kris is probably kicking herself right about now because she unwittingly gave her former assistant and close friend Ronda the tools to seduce her estranged husband Bruce Jenner, a source tells HollywoodLife.com EXCLUSIVELY.

Photo Content: yellow prom dresses

Kris Jenner has always completely trusted Ronda Kamihira with her deepest, darkest secrets — including ones about Bruce Jenner‘s bedroom turn-ons! Now poor Kris feels super "hurt" and "stupid " after Ronda and Bruce’s reported betrayal!

Bruce Jenner’s Girlfriend: Ronda Kamihira Used Kris’ Secrets To Seduce Him

Kris, 58, is learning the hard way that not everyone follows the girl code — namely her former BFF Ronda.

"It hurts badly because Ronda was one of her go-to girls when she was contemplating filing for divorce from Bruce," a source tells HollywoodLife.com EXCLUSIVELY. "Ronda was also one of the first to know Bruce was moving out. Kris talked to her about everything in life, everything. Ronda was her girl and confidant for years. She’s told her things that are so private to her, including bedroom secrets."

"She’d tell her things that Bruce loved in bed and certain things he didn’t," our source adds. "His soft spots and sexy things she’d wear around the house to hint to Bruce that she wanted him. It was innocent, one-on-one girl talk and Kris, at the time, thought nothing of it. It’s crystal clear to Kris now that she’d apparently been teaching Rhonda and giving her the blueprint for having sex with her ex. Kris feels so stupid. This could make her lose all trust in her female friends. Women, she thought, are supposed to stick together. That’s what she’s always told her girls. Now this happens."

Poor Kris! We know she and Bruce, 64, are leading separate lives now, but it sounds like Ronda has definitely crossed a line!

Bruce Jenner Dating Kris Jenner’s Best Friend Ronda Kamihira

Bruce and Ronda were first spotted at an Elton John concert in LA on Oct. 4 so they’re obviously not trying to hide their relationship from Kris.

"Kris is devastated," a source tells People magazine. "This was her former assistant and best friend of 20 years. Kendall and Kylie [Jenner] grew up with her two kids and have been their best friends."

Read More: green prom dresses