Substitute teacher, 25, is charged with raping her eighth-grade student after the 15-year-old s mom found photos and videos of the two together on the boy s phone
Alexandria Allen, 25, was arrested by Georgetown police on Monday and was charged with three counts of third-degree rape
The victim was a former eighth-grade student at Spring Middle School, where Allen was formerly employed
Teen s mother reported Allen to police last October when she found nude pictures and videos of the educator with her son on his cell phone
Allen pleaded not guilty to the charges