KUWTK Sneak Peek: Kim Kardashian West Teases Bruce Jenner About His Hair (VIDEO)

Update: In June 2015, Caitlyn Jenner came out as a transgender woman. This content was written in March 2015, before Jenner publicly announced her full transition.

Kim Kardashian West's hair is always a hot topic, whether it's brunette, platinum blonde, long and flowing or cut chic and short.

But stepdad Bruce Jenner really isn't feeling her post-workout 'do in a preview of Sunday's episode of Keeping Up with the Kardashians.

"Love the hair," Jenner, 65, jokes of her sloppy bun. "It's a look."

"Wait, you're telling me my hair is a look?" Kardashian West replies, smiling. "What do they say, 'Call the kettle black'?"

Jenner – who's been growing out his hair as he transitions into a woman – just laughs.

Teasing aside, the first family of reality TV has a serious decisoin to make: Should Kourtney Kardashian really be the new executor of mom Kris Jenner's living will?

"Kourtney is the most indecisive person in the planet," Kardashian West insists.

Watch the clip above to hear what else she has to say about her older sister.

RELATED: Bruce Jenner’s Transition Has Been ‘Difficult’ for His Family: Source