Jennifer Lawrence ''pointed and laughed'' during her sex scenes with Bradley Cooper.

The 24-year-old actress shares a close bond with the 40-year-old actor after working with him on 'American Hustle' and 'Silver Linings Playbook' but their friendship didn't make their intimate scenes in 'Serena' any less awkward.

Asked if their friendship makes sex scenes more comfortable, Jennifer said: ''No.

''I guess it's more comfortable than not knowing the other person? I don't know. They're just awkward.''

Bradley added: ''You never know how it's going to be. But for us, we laughed most of the time.''

Jennifer quipped: ''I pointed and laughed.''

Awkward sex scenes aside, the pair had a great time working on the movie.

Bradley told 'Entertainment Tonight': ''We had a lot of fun. We got to shoot in Prague and ride horses.''

Jennifer added: ''We had a blast. We always have a blast working together, obviously.''

The 'Hangover' actor - who recently split from model Suki Waterhouse - loves working with Jennifer because he can always learn from her, and the 'Hunger Games' star says the feeling is mutual.

He said: ''I respect her so much as a professional, as an actor, and I think she's the best there is.

''I just learn from her. You always want to work with people who are better than you.''

She added to Us Weekly magazine: ''And I feel the same way about him.''