Actress Leslie Mann was so excited to make-out with The Other Woman co-star Nikolaj Coster-Waldau she broke out in hives during their first kissing scenes.

The This Is 40 star thought nothing of her husband, writer/director Judd Apatow, as she prepared to lock lips with "the hot guy from Game of Thrones", but it wasn't quite the sexy encounter she had hoped it would be.

Mann tells WENN, "I've been married for 17 years, so I was like, 'Yes!' You know how actors say, 'It's really technical and the sex scenes are so technical, it's like work?' I'm like, 'That's bulls**t!' So we did the kissing scene and he's got the scruff (unshaved look) and I broke out into full hives!

"They thought maybe it was his aftershave, so we did it again and I broke out in hives again! I was so bummed! But I got the job done because I'm a professional."