TAYLOR, Mich. - A woman's five children were in protective custody after she was charged with offering to let an undercover investigator have sex with her 7-year-old daughter.

The 33-year-old woman, from the Detroit suburb of Taylor, was arrested Friday night after bringing the girl to a hotel in Romulus, near Detroit Metropolitan Airport, where she had agreed to meet the investigator, the Wayne County Sheriff's Department said.

The woman was prepared to offer her daughter "for pornographic photos and anything else that was available if the price was right," Sheriff Warren Evans said. "She had indicated very clearly that that child would do whatever it was that the person who was going to meet the child wanted to do, and that she would see that the child complied.

"It's a very, very disgusting case."

The woman's name was not released so the child would not be identified.

She was arraigned Sunday on five charges, including child sexually abusive behavior, illegal use of the Internet for child sexually abusive actions or materials and distribution of child sexually abusive material, sheriff's spokesman John Roach said.

She was also charged with prostitution. The department said the woman propositioned the investigator herself and advertised online as a prostitute.

A not guilty plea was entered on behalf of the woman, who wasn't represented by a lawyer at the arraignment, Roach said. A preliminary examination was scheduled for April 12.

The woman was being held on a $1 million bond. If convicted, she could get up 20 years in prison.

Authorities said the investigator was posing as a photographer when he and the woman met online.

The woman arrived at the hotel with her daughter, along with adult sex toys in a duffel bag and different dresses for the girl to wear, the department said.

At the time of the online chats, the department said it was investigating the woman on suspicion of distributing child pornography.

Evans said investigators were trying to determine if the woman's other children - ages 12, 11, 9 and 6 - were victims of illegal sexual activity.