You Lead, I Follow (2011)
Niklas and Søren are old friends, and there is a clear division of power in the relationship: Niklas is the strong, Søren the docile. On a drunken night, Niklas decides to make a contest: Whoever takes a young girl with the "Anal Pro" sex toy has won. But as he makes Søren's 17-year-old sister Ida,