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Kim Kardashian isn't afraid to ask her BFFs for very personal favors.

In this clip from Sunday's Keeping Up With the Kardashians, Kim asks her best friend Jonathan Cheban if he can drop her pee off at the doctor!

"So because I've had you know pregnancy issues in the past, I need something dropped off at a lab," Kim explains.

Kim then asks Jonathan, "Can you drop one thing off for me?"

Jonathan suggests Kim asks her assistant Stephanie, but the two women are busy working on Kim's app so they can't go.

"I need to pee in a cup and I just need to drop it off to the doctor," Kim tells Jonathan.

"Are you f--king sick?!" Jonathan asks. "What do you mean? You want me to go walk around with your piss?"

"No one will ever know, look I got the cup from the doctor and it will be in this bag," Kim tells him.

"That is disgusting I won't even like hold my own piss, are you crazy?"

Will Jonathan do it?

Take a look at the video above to find out!

Watch an all-new episode of Keeping Up With the Kardashians Sunday at 9 p.m., only on E!

And watch seasons 1-10 of KUWTK on Hulu now!