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Kim Kardashian and sister Kourtney returned to L.A. after an appearance on The Late Show with David Letterman.

The pregnant 32-year-old reality star wore a tuxedo-style ensemble with patterned peep toe heels. Yikes, Kim ... those feet!

Sister Kourtney opted for something a bit more hairy. Well, at least she's warm while pushing baby Penelope.

During their Letterman appearance, Kourtney defends Kim after Dave asks, "Now, you're still married to the former husband, Kris Humphries?" Then alludes to Kim marrying Kris for publicity. Kourt says, "I think if she was going to do it for publicity, she'd pick someone that people knew!"

Whoa, never a dull moment with these two!