There's something about Simon!
His new X Factor co-host Khloe Kardashian plonked herself on his lap during a live show last night.
Will she be Cowell's next conquest?
He's the music mogul who can't help but co-mingle with his co-stars.
From finding "true love" with Danni Minogue to totally grossing out Cheryl Cole, check out Simon's extensive CV of seduction in our slideshow: