Los Angeles, March 31 (IANS): Rapper Kanye West has threatened to fire Kim Kardashian West's personal trainer who declared that there's no way his wife can lose 15 pounds.

The reality TV queen said on Sunday night's episode of "Keeping Up with the Kardashians" as she breathlessly revealed to sister Khloe that her volatile husband had threatened to fire her personal trainer, reports radaronline.com.

Kim told Khloe: "Do you want to die? Kanye literally went crazy on the trainer today. She was like, 'So what are your goals, tell me everything.' And I was like, 'I need to get down to 120'.

"She's like, 'There's no way. I can't even imagine you 15 pounds lighter'."

At which point, Kanye intervened.

"Kanye's like, 'Wait a minute. You are the trainer and you're telling me you can't imagine her 15 pounds lighter?

"We need to get another trainer then because if I tell you she needs to lose weight in between her toe, you would have figured out a f*cking toe weight'," Kim says to her sister, who laughed about Kanye's apparent bullying attitude.