Scarlett Johansson has revealed that she freaked out Joaquin Phoenix while recording a phone sex scene for the film Her.The actress, who played the voice role of an AI assistant called Samantha in the 2013 film, explained in a new interview that she had to record her scene in a studio with Phoenix after the latter had already filmed his camera scenes.“You definitely don’t want to hear what you sound like having a fake orgasm,” she recalled on the Armchair Expert podcast with Dax Shepard and Monica Padman.“I remember we came in that day. I’ve become that actor that’s like ‘let’s get dirty.’ I have to, because otherwise I’ll be petrified.