Each time, when Josh attempts to leave, his libido manages to insist that he go back to Cin's place. After a time, the two experience a bit of an interruption when one of Cin's friends called Sam (played by Catherine McClements) arrives to chat her up and winds up flirting with Josh.
It is clear that something more is developing between Cin and Josh - much more than they had planned. They talk at great length, grappling with their thoughts out loud, mostly in bed or the bathtub. The couple speaks to the camera occasionally to talk about how they feel about what is transpiring. They also have much discussion about their very personal thoughts with each sexual encounter.
To delay gratification, Josh decides to recite a cake recipe. In between their encounters, various other young men and women talk to the screen about what they enjoy about sex. These quirky discussions expand upon the film's developing story about Josh, Cin and others of their ilk.
Josh and Cin appear to be devoid of neuroses and hang ups, so that they can enjoy their lives fully and freely. After interest increases, they continue to carry on their affair in London just like they had in Sydney.