Robert Pattinson has said there was nothing romantic about his new love scenes with Kristen Stewart in Twilight: Breaking Dawn - Part 1.

In an interview with Parade, Pattinson said: "We show romance in the bedroom and also in a nice ocean setting. It was impossible in the waves. We were trying to kiss each other and we misjudged the strength of the tide and so it was absolutely one of the most difficult things I've ever had to do in my life.

"There were big waves and Kristen and I were standing on boxes tied down to the shore. God, it was absolutely impossible. One thing I have to say, we shot those scenes in the Caribbean, so the water was warm."

Pattinson added that filming love scenes with his real-life girlfriend, Stewart, posed their own unique challenges: "I think the more comfortable you are with each other, the harder it gets to do any kind of really intense relationship scene.

"You're kind of thinking, 'I don't want to embarrass myself in front of this person', 'I know what she's thinking now', so it becomes ridiculous after a while."