Steve Carell and Jonah Hill??? I love Scarlett Johansson in this role and I love idea of sisters or sister in laws even. Amy Adams is beautiful, sexy and classy. Plus she would pull off the perfect older sister to Scarlett. Their husbands should be strong intelligent and supportive men like in real life. Lets be stright here this is not supposed to be a comedy so why the fascination with Carell and Hill? I think Christian Bale and Ryan Gosling or maybe even James Franco. As far as the bulls go I think it should just be one bull who dominates and cucks the brother in laws.
The plot should tell a story about how the older sister and brother in law introduce their newly wedded younger sister and brother in law into the lifestyle by having their own bull cuck the little sisters husband on a drunken night at their house. The story would go and show how the younger couple dealt with conflicting emotions, but both agreed they were both extremely turned on with it and decided to move forwaed with their adventure. They start living it up with this new exciting change in their lives trying new things they never imagined doing before but it didnt matter because they were addicted and couldn't get enough.
Eventually marital problems started interfering when word got around about their lifestyle due to their carelessness. They knew they had to make a change to save their marriage and learn from mistake. It is then that they are introduced to an older black gentleman (played by Ving Rhames) by the older sister who intervenes because she started them down this road and didnt want to see them throw their marriage away. This older gentleman would become their mentor and Bull and guide them into a happy marriage and exciting times but show them how to make it work best for a lasti g marriage.