Khloe Kardashian Reveals the 3 Craziest Places She's Ever Had Sex

This may be her most candid moment yet.

Just when you thought you knew everything about her famous family, Khloe Kardashian throws a complete curveball, proving she might be the kinkiest of the bunch.

Via her app, the unfiltered Keeping Up With the Kardashians star candidly reveals the craziest places she’s ever had sex -- and rates them too!

WATCH: Chelsea Handler Hopes the Kardashians Get Over Her Jokes About Them... Or Not

The first location the 31-year-old shares where she’s “gotten down and dirty,” is a private plane, which she rates a 5/5.

“Doing it on a private plane is great, especially when there are other passengers on board. It's part of the thrill,” she explains. “I walked into the bathroom first and then he followed so it wasn't exactly stealth, haha!!! Everyone obviously knew what was going on and when I walked out, they asked if we had fun.”

Another spot Khloe claims is the craziest, but not her favorite, is in a moving car.

“Don't try this at home,” the reality star warns of the location she rated 2/5. “Someone else was driving and I was in the backseat, but I'm a tall girl so it feels cramped and it hurts my f**king knees. Getting down in a moving car is a waste of time, because nothing happens for me. I just don't get to the finish line! If you're down for a thrill, then by all means, but this one gets a low rating from me!"

The third and final location seems a bit more safe and simple than the other places but she cautions it can be “cold.”

Khloe rates the kitchen counter a whopping 5/5!

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“You're at home, so it's comfortable, but it's still a little different than the norm,” she shares. “A marble kitchen counter is sexy, thrilling ... and cold, LOL!”

Khloe recently revealed on her show, Kocktails With Khloe, other family members who have also joined the mile high club. Watch the video below to find out!