Kelly Ames, 21, of Kirksville, is charged with two counts of first degree child molestation. She is being held in the Adair County jail under $100,000 cash only bond.
According to court papers, Ames is accused of inappropriately touching the victim on two separate occasions while she was babysitting for the four-year-old in the trailer Ames and Christopher Hunter share.
Ames, like Hunter, told Kirksville police she also "had a problem".
The investigation into the activities of both Hunter and Ames is continuing.
Ames was in court Wednesday morning and her attorney asked for a bond reduction. That request was denied. Her next court appearance is set for January 30.
Man arrested, admits "fetish for little girls"