Emma Watson and Daniel Radcliffe Emma Watson and Daniel Radcliffe

You'd think that after growing up together on the set of the Harry Potter movies, stars Daniel Radcliffe and Emma Watson would be uncomfortable kissing each other for a scene in Harry Potter and the Deathly Hallows: Part 1. Radcliffe says no.

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"To be honest, it wasn't too awkward. It was quite enjoyable. I quite liked it," the 21-year-old told TV Guide Network at the film's London press day Friday. "She was very good as well, I might add. It was passionate. I thought it was going to be a slow, soft shy kind of thing, but no, that went out the window very quickly. It was vigorous. It was great!"

Watson, on the other hand, found the whole thing to be incredibly awkward. "It was like some weird social experiment," she said. But the kiss itself wasn't so bad. "He is a good kisser. I can definitely vouch for that," she says.

Check out the clips below, and  tune in to TV Guide Network's Big Movie Premiere: Harry Potter and the Deathly Hallows on Wednesday, Nov. 17 at Midnight/11c for more interviews with cast, behind-the-scenes footage, on-set secrets and all the excitement from the world-premiere red carpet.