Two Waterloo women were stabbed early this morning at a Cedar Falls nightclub.20-year-old Natalie Schoepske and 21-year-old Tiffany Morris sustained multiple stab wounds after an argument at Club Shagnasties around 2 a-m. Police say the two were fighting with a Cedar Rapids woman outside the club. 21-year-old Melissa Campbell is jailed on several charges.Schoepske was treated and released. Morris is in stable condition in a Cedar Falls hospital.