Two Wisconsin sisters allegedly sexually assaulted a man with pliers and forced him to drink their urine.

The sisters, Valerie Bartkey and Amanda Johnson, have been charged in St. Croix County Court in Somerset, Wisc., with a felony count of second-degree assault by force and two misdemeanor counts of battery and criminal damage to property. According to TwinCities.com, Johnson was also charged with a count of intimidating a victim.

According to court records, Bartkey, 24, and Johnson, 17, punched and kicked an 18-year-old man at a Somerset, Wisc., residence on Oct. 1. TwinCities.com reports the sisters soaked one of the man's shoes in a toilet and the other in a sink.

Bartkey and Johnson forced the man to drink a glass of what they claimed was lemonade. It was actually their urine. The sisters then forced him to undress and told him one of the girls wanted to have sex with him.

Once the man was undressed, Bartkey allegedly pulled and twisted the man's penis with pliers and Johnson threatened him with a belt, reports TwinCities.com. The man claims it was the most extreme pain he had ever experienced. Johnson then ripped the man's shirt to shreds.

It was later reported that Bartkey and Johnson were smoking marijuana the night the incident occurred. The assaulted man denies smoking marijuana. WQOW-18 reports that witnesses heard Bartkey's four-year-old daughter crying in the next room while the incident was occurring.

Bartkey and Johnson could face up to 25 years in prison and are scheduled to appear in court on April 12.

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