This is not the case here with Andy and Arne, so it would be best to view the opening of the scene as intentional comedy, careful crafted by a skillful director rather than an attempt at realisim. Once the 2 guys get passed the opening though, they show their true area of expertise. Both are acomplished lovers, skilled at pleasing their partner and there is a genuine desire that is almost palpable thoughout their love making.