Staffer sex bust at breakout prison

A PRISON worker has been busted for having sexual contact with an inmate at the upstate penitentiary where a lovestruck employee aided the high-profile escape of two killers, officials say.

Denise Prell, 38, allegedly was having a fling behind the imposing walls of the Clinton Correctional Facility two years after prison seamstress Joyce Mitchell aided the “Shawshank Redemption”-style breakout of Richard Matt and David Sweat. The married Mitchell had carried on a romantic relationship with Sweat before the escape.

The probe of Prell began after a corrections officer witnessed “inappropriate behavior” between the civilian employee and an inmate, authorities said. Prell was fired soon after, and the investigation turned up evidence indicating she was also smuggling banned items into the prison, authorities said.

She was arraigned Wednesday on multiple charges including sexual abuse and promoting prison contraband.

The married Prell is being held in the county jail on $10,000 cash bail.

Mitchell, 53, played a pivotal role in the 2015 prison escape that riveted the nation and rattled residents in upstate New York.