The franchise may be called Teen Mom - but nearly all of the original Teen Mom 2 cast members are now parents of teenagers themselves. When the show premiered in 2011 - following the lives of four girls from 16 and Pregnant season 2 - no one, least of all the cast, could predict that their children would be growing up on television for more than a decade. The original iteration of the show took MTV viewers behind the scenes of becoming a teenage parent.