The Kitsap County Sheriff's office is looking for a woman they say stabbed a Port Orchard man who had paid her for sex, but later asked for his money back.

Officials were called to the man's house at about 3:15 a.m. Monday and found him on his porch, bleeding. The 31-year-old man had a stab wound on his back and hand.

He told police that he arranged for a sexual "date" with the woman through the website Backpage.com. But when the transaction proved unsatisfactory for both parties, he demanded his money back and an argument escalated into a physical confrontation. Officials say the man suffered critical injuries and was taken to Saint Joseph Hospital in Tacoma.

Police say the woman is in her 20s, 5-feet, 8-inches with long, blond hair.