Momster-in-Law (Part 3 of 3): The wedding day is finally here, and tensions are at an all-time high between the bride, Serena, and Ryan, her awful stepmother-in-law. Minutes away from walking down the aisle, Serena is horrified to find Ryan wearing a white dress just like hers. Serena freaks out and confronts an adamant Ryan, starting a tremendous fight. Serena finally decides to call the wedding off and tell Oliver, the groom, that she can’t accept his stepmom. Suddenly, Ryan comes in and apologizes to Serena. The two patch things up and the ceremony is back on, setting the mood for a very hot wedding night between husband and wife…and stepmom-in-law!