The casts of Teen Mom OG and Teen Mom 2 are each currently in different stages of motherhood - some have kids in diapers, while others are now parenting teenagers! But they all share the unique experience of momming so young. For the first time, the moms and all their stories will be brought together in one supersized series that focuses on the unique bond this "Mom Group" shares as they face the reality of parenthood and adulting while entering this next phase of life together.