Deputies arrested 45-year-old Ron E. Wisdom last week for having sexual contact with the girl. But his wife, 33-year-old Christina Wisdom, has also been charged with lewd conduct because she knew about the activity but didn't tell police, authorities say.
Christina also apparently told the girl she did not have to cooperate in court if she did not want to, the sheriff office says.
The sexual contact, Ada Sheriff says, occurred on more than one occasion over a five-year period at an Ada County home. Ron is well known to the girl.
Both are charged with lewd conduct, but Christina is also facing a felony intimidation of a witness charge.
Christina has her initial court hearing later Thursday, while her husband is scheduled to make a plea on Tuesday.