A Mills man already serving time in jail, has had his sentence extended after admitting he went too far with his girlfriend.

Forty-five year old John Kosmata was sentenced to an additional year in jail, after he pleaded guilty to two reduced misdemeanor charges of domestic battery (originally first degree sexual assault).

Investigators with the Mills Police Department say in February, Kosmata had returned home intoxicated, and physically beat the victim.

He then ordered her to undress and go to the bedroom, where he then used a number of sexual toys on her, causing her to bleed

Kosmata also stabbed her with a fork, and then cut off a small piece of her hair.

During the assault, the victim's eye was bruised, and Kosmata told her to call in sick to work for two days.

When she was allowed to go to work, Kosmata instructed her that if anyone asked about her injuries, to say she fell in the bathtub and hit her head.

A co-worker asked the victim about the eye, and she later admitted what had happened and went to the hospital.

Law enforcement was then contacted and the victim said she was in an abusive relationship.

When interviewed, Kosmata admitted to the various sexual acts, and the hair cutting.

When asked if he could have gone too far, he said that if he hurt the victim and was in a police station, the yes he went too far.

At the time of his sentencing, Kosmata was serving a six month jail sentence, in an unrelated case.