The Kardashian sisters are known to pile on the make-up when glamming it up for red carpet events, or even just when they're running some errands, and newly married Kim Kardashian is finally revealing where their love for make-up came from - their dad!

In a recent interview with xoJane.com, Mrs. Humphries revealed that their late father Robert Kardashian hired a professional make-up artist to give the girls beauty tips when they first started experimenting with make-up, and that is what got them so obsessive. "He said, 'My daughters are going to start wearing make-up and I want you guys to at least look presentable' which I thought was really cool," Kim explained. "And we've turned out to be the biggest trannies because of it!"

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Youngest sis Khloe Kardashian added to the discussion, saying, "We joke that we are like trannies because we love hair and make-up. I don't think we necessarily need it, but we love it. But Kim, definitely, if you take off what's on her face, her face is the exact same. She doesn't need it - it's like a mind thing to her. She definitely doesn't need it."

However, Khloe also revealed that not everybody has always been too happy about the free make-up lessons the girls got when they were younger and what it has led to! "At first we had publicists and people who would tell us, 'Girls, tone it down, stop wearing all that make-up,'" she explained. "But then we would read on our blogs - like the comments and everything - and everyone was like 'What lipstick is this?, what mascara do you use?' We were like, 'We love make-up, so why try and be what we are not?'"

"We're girly girls," Kim concluded. "We like every beauty product."

What do you think about the Kardashians' make-up obsession!?

Photos Courtesy of: Fame Pictures