A 30-year-old Denver mother has been charged with sexually abusing her 2-year-old son, according Denver District Attorney Mitch Morrissey.Alicia Lee is free on a $50,000 bond after she was charged with sexual assault on a child, sexual assault on a child by a person in a position of trust, and aggravated incest, all felonies, Morrissey said.According to the charges, Lee performed oral sex on her son and took photographs, sending them through e-mail to a friend who forwarded them to the 2-year-old boy's father. The father then called police. According to a copy of the e-mail reported by the Rocky Mountain News, the mom told her friend in April that she thought about the sex act while changing the boy's diapers. The next day, she sent a photo of herself performing the act to a friend and said the boy giggled when she performed it."The sending of possible child pornography material via e-mail is being referred to federal authorities for review," a news release stated.Lee is scheduled to appear in Denver County Court on Sept. 29, to be formally advised of the charges against her.