Khloé Kardashian's latest sex secrets leave nothing to the imagination!

Los Angeles - Khloé Kardashian uses a sex calculator.

The Keeping Up With The Kardashians star has been sharing her tips on how to burn calories whilst getting intimate with your partner.

Taking to her official website, she wrote: "I'm all about having fun with fitness and it's the best way to stay motivated to work out. I had my team put together a list of sex positions that burn the most calories, because what's more fun than getting down??? LOL.

"I even found this 'sex calculator' that tells you exactly how many calories are burned between the sheets based on your gender, weight, position, style ('slow,' 'frisky' or 'fast and furious,' haha) and time frame. (sic)"