EMMA Watson was “absolutely mortified” when JK Rowling said she would have to kiss Daniel Radcliffe and Rupert Grint in the Harry Potter films.

The billionaire author has revealed how she used to discuss what she was planning for the characters with the young stars of the film before she had finished the books, and Emma guessed the upcoming romance between her character and Rupert’s character Ron.

“I was having a girlie chat with Emma in her dressing room about three or four years ago and she said, ‘I think I’m going have to kiss Rupert, aren’t I?’” Rowling said.

“And I told her if I write it the way I think I’m going to write it you’re going to have to snog both of them, (Daniel and Rupert) and she was absolutely mortified and rolled off the sofa laughing.”

“I was only 14 and the idea was absolutely… they’re like my brothers!” Watson added.

Watson — who has earned millions playing Hermione Granger in the Harry Potter movie franchise — recently admitted she hasn’t got a clue how she wants to spend her money.