A South Dakota man accused of sitting on a woman and slicing off her nipples with a pair of scissors has pleaded guilty.

The Argus Leader reports that 45-year-old Tony Ledbetter of Sioux Falls pleaded guilty Friday to three counts of aggravated assault. Each count carries a maximum penalty of 15 years in prison. As part of a plea deal, the state agreed to ask for no more than 30 years.

Police say Ledbetter and his ex-girlfriend were having an argument in October about their relationship when Ledbetter punched her, slammed her head on the ground and tried to get her to stop screaming by putting pressure on her throat with his forearm. Ledbetter later grabbed a pair of scissors.

Sentencing is scheduled for Nov. 28.

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Information from: Argus Leader, http://www.argusleader.com