Emma Watson says kissing Rupert Grint is like smooching "your brother".

The 19-year-old actress locks lips with her co-star in 'Harry Potter and the Deathly Hallows', the final installment of the boy wizard franchise, and has been dreading filming the scene for years.

Emma said: "It was really awkward. Rupert's like my brother, so it just felt very, very strange. But he's a gentleman, and he was a great kisser."

Daniel Radcliffe, who plays the titular boy wizard, had similar problems filming his love scenes with Bonnie Wright, who plays Ginny Weasley.

He said: "Even though Bonnie is obviously stunningly beautiful, I've known her since she was nine and I was 11. So that was kind of weird at first. But we got used to it. We got over it pretty quickly in fact."