A Pottawatomie County, Oklahoma, woman is accused of trying to prostitute her five-month-old in exchange for drugs, a court case reveals.

Carmita O’Bryant stands charged with offering her baby as a sexual toy to James Smith in exchange for doses of crystal meth, Pottawatomie County sheriffs charge.

Much of the evidence for the crime appears on Facebook’s Messenger application, and authorities invited the U.S. Secret Service into the case to help investigate the electronic trail of evidence.

In one message, Smith allegedly demanded that O’Bryant send naked pictures of the baby to him so he could judge whether the woman was serious about the offer.

“Show me you are serious,” the message read. “Use your dirty mind and send me a pic, and then I can see what I can get you.”

Police say O’Bryant then sent several of the requested photos.

The two have been an on-again/off-again couple for years and have had other children together, KOCO reported.

The pair face a list of charges, “including sex trafficking of children, selling or buying children, and manufacturing child porn.”

Follow Warner Todd Huston on Twitter @warnerthuston or email the author at igcolonel@hotmail.com.