A disgraced Louisiana teacher has pleaded guilty to "horrific crimes" against children and admitted to serving her students cupcakes that contained sperm from her ex-husband, who is awaiting his own trial on child sex crime charges, according to authorities. Cynthia Perkins, 36, agreed to plead guilty and testify against her ex, 44-year-old former Livingston Parish Sheriff’s Office SWAT member Dennis Perkins, who is also charged with dozens of child sex crimes, according to prosecutors. "She not only waived any right to appeal, and attempt to avoid conviction, but she also spared the victims from reliving her horrific crimes during this...