Jenner, 58, was introduced to pot by none other than her mother, M.J. Shannon, who revealed on the episode she has been using medical marijuana to reduce her chronic back pain.
The two women were in the kitchen getting ready for a cocktail when Jenner's mom tried to convince her to take one of the especial gummy bears she eats to treat her condition. After considering it for a few minutes, Jenner agreed to take one because she's "not against anybody trying to get a little pain relief from medical marijuana."
"If it helps my neck pain, and she's asking me to do it with her, I'm here to support and I'll do it this one time," she continued.
After a while, Jenner and Shannon are shown snacking on chips and guacamole while riding their high, but the pair is later reprimanded by Jenner's estranged husband Bruce for having drugs in the house.
"I hate drugs," Bruce said about the incident in a voice-over. "And to have Kris and her mom treating this like its a joke really, really upsets me."
Celebrity Families of 2014 [PHOTOS]