Teen Mom star Amber Portwood has pleaded not guilty to beating baby daddy Gary Shirley. The altercation that was captured by MTV during the filming of the reality program shows Portwood slapping and hitting her then-boyfriend during a heated argument. All of it took place in front of the couple's 2-year-old daughter, Leah. Portwood, who faces felony charges of battery and child neglect, has been released from jail but can't yet have contact with her daughter, reports TMZ. Click here for a sample of Portwood's previous trouble.
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