Kim Kardashian Says She Hears Kris Jenner Having Sex At Night

Kim Kardashian discusses Kris Jenner's active sex life in a new episode of KUWTK. Photo: Getty Images

Kim Kardashian has shared a disturbing bit of info in a new clip for this week's episode of Keeping Up With the Kardashians.

Speaking to her sister Khloe and Scott Disick, Kim says she often hears her mum Kris Jenner having sex at night.

Scott and Khloe cringe as Kim tells them, "The bed bangs up against the wall ... I swear I thought I heard moaning."

"That's disgusting," Khloe chimes in.

In the clip, the trio also discuss the Kardashian matriarch's relationship with 33-year-old Corey Gamble, debating whether they think Kris, 59, is moving too fast with her toyboy.

Scott then points out that Kim has jumped into marriage after just a couple of months of dating.

Meanwhile, Kim revealed in an earlier clip of the E! reality show that she's been warned by doctors to cut down on the amount of sex she's having with husband Kanye West.

The couple - who already have 20-month-old daughter North - are trying to conceive a second baby and have "tried everything" without success.

"I'm going to do everything that I want to do and that includes going platinum," Kim said. "Hopefully I will get pregnant doing all the wrong things. I'm totally changing my tactics."

GALLERY: Kardashians Getting Naked