NEW PORT RICHEY — At first, the man thought he'd been punched. He looked at Tracy Dimasi, who, deputies say, had a knife in her hand. Then the blood started seeping through his shirt.

It all started around 10 p.m. Tuesday.

Dimasi had asked to use the man's bathroom in his house at 3534 Calera Drive, according to a Pasco County Sheriff's Office report.

The report did not indicate how the woman knew the man.

After Dimasi walked inside the house she picked up the man's cat, the report states, and tossed it out of a window.

At that point, Dimasi and the man got into an argument over the cat being out.

Dimasi, 39, would later tell deputies that the man threw her to the kitchen floor and stepped on her neck. When the man left the kitchen, the report states, Dimasi got up, grabbed a steak knife and followed him into a spare bedroom.

She stabbed him in the upper chest, the report states. They grappled for the knife, and he took it from her.

The man was on the phone, the report states, when Dimasi came from behind.

She then stabbed him in the upper right shoulder, the report states, and in the lower left of his back, just above his waistline. The sheriff's report does not say if she used a different knife.

At that point, the man ran outside the house and waited for deputies to arrive.

Dimasi told deputies the man had also grabbed her hair, kicked, punched and choked her, the report states.

She "could not explain" how the victim had stab wounds, the report states.

Dimasi was arrested and transported to the Land O'Lakes jail on an aggravated domestic battery charge.

She remained there Friday in lieu of $10,000 bail.

Alex Orlando can be reached at aorlando@tampabay.com or (727) 869-6247.