Jk Rowling has spoken frankly about the relationship of Hermione Granger and Ron Weasley in the Harry Potter books, admitting for the first time that the romance made little sense and was invented "for very personal reasons, not for reasons of credibility."

Rupert Grint Emma WatsonRupert Grint [L], Emma Watson [centre] and Daniel Radcliffe [R]

Rowling was speaking to Wonderland magazine - of which Emma Watson is presiding over as guest editor - when she discussed her reasons of pairing up Hermione and Ron, instead of Harry.

"I think there are fans out there who know that too and who wonder whether Ron would have really been able to make her happy," Watson responds in excerpts from the interview printed in the Sunday Times.

Rowling said she could "hear the rage and fury it might cause some fans" of her work and that she hoped she would not be "breaking people's hearts" with her revelations.

In her new issue, Rowling apparently suggested Ron and Hermione would need counselling to sustain a relationship. She also claims to have forced the marriage of the pair "as a form of wish fulfilment" on her part.

Emma Watson and Rupert Grint played Hermione and Ron in the eight Harry Potter films, with Daniel Radcliffe playing Harry Potter, who married Ron's sister Ginny in the final instalment.

JK RowlingJK Rowling Admits Ron and Hermoine Wouldn't Really Have Worked

In was announced in December that Harry Potter is set to hit in the West End in the form of a stage play about the wizard's life before his arrival at Hogwarts. 

Rowling said: "Over the years I have received countless approaches about turning Harry Potter into a theatrical production, but Sonia [Friedman] and Colin [Callender]'s vision was the only one that really made sense to me, and which had the sensitivity, intensity and intimacy I thought appropriate for bringing Harry's story to the stage. After a year in gestation it is exciting to see this project moving on to the next phase."

The Harry Potter stage play is set to hit the stage in 2015.