08/12/2013 05:30 pm ET

'Teen Mom' Jenelle Evans -- Goes Back To Jail ... With A Smile


"Teen Mom" star Jenelle Evans can't manage to stay out of jail ... even after copping a plea deal to stay out of jail.

Jenelle was in court Monday for uber-serious drug charges ... including heroin and illegal Percocet possession. A drug paraphernalia charge was added for good measure, because cops say they found wrapping papers and a pipe.

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