Teen Mom Ordered to Prison Judge reinstates Amber Portwood's 5-year term in stir By Mary Papenfuss, Newser User Posted Jun 6, 2012 12:01 AM CDT 16 comments Comments MTV 'Teen Mom' star Amber Portwood poses for her 2010 mug shot. (AP Photo/Madison County Sheriffs Department) (Newser) – A violent, drug-abusive star of MTV's Teen Mom reality program is about to be sent away to prison for at least two years. Amber Portwood, now 22, dropped out of a drug rehab program last month, and an Indiana judge yesterday reinstated a five-year sentence he imposed after she pleaded guilty to a felony drug charge earlier this year. The sentence had been suspended on the condition that she complete the rehab. Portwood will likely serve closer to two years, notes CNN. She was first busted for domestic violence in 2010 after she slapped, punched, and choked her babydaddy, Gary Shirley, in an attack shown on Teen Mom. She was arrested again last year for illegal possession of prescription drugs. Shirley currently has full custody of the couple's 3-year-old daughter, Leah.