Natisha Hillard sold the child to 39-year-old Christopher Bour for an undisclosed amount of money, according to court documents.
The 24 year old is alleged to have known that her daughter would be used in child porn films.
The FBI began investigating Bour after being alerted by a unnamed masseuse who said Bour had texted her about his intentions to sexually abuse the child.
Two of Bour's messages read: 'U wanna watch me play with a baby tomorrow a real one' while another said: 'I get a chance once in a while I was just seeing if you would hold the camera.'
The woman told FBI agents she had seen child porn movies on Bour's laptop during previous visits to houses he lived in while renovating them.
FBI agents raided Bour's home in Hammond, Indiana, and seized his computer.
They also found videos and photographs of people engaging in sex acts with pre-pubescent children, including images of Bour and young children.
Hillard could also be seen in some of the photographs.
Court records show she Bour through an internet dating service, according to the court records.
She was charged with selling the girl to Bour with knowledge she 'would be portrayed in a visual depiction assisting another person to engage in sexually explicit conduct.'
Bour is charged with production of child pornography, purchasing a child for production of child pornography and possession of child pornography.
