Woman charged for having sex with sick friend's son while babysitting him

London, May 5 (ANI): A 41-year-old woman has been charged for having a sexual relationship with boy when he was just 13-years-old.

Karen Lee Carstens volunteered to help babysit the teen while her friend, the boy's mother, was hospitalized, the Daily Mail reported.

According to Police, she began to sexually assault the teen when he was 13 years old and eventually ended up having sex with him on numerous occasions at her home in Houston, Texas.

Court documents revealed the teen was more concerned than Carstens that he would get her pregnant when having unprotected sex .

According to court documents the boy "cried believing he had impregnated [Carstens] but [Carstens] assured him not to worry because her menstrual cycle was due soon."

Police said that Carstens told him not to tell anyone about their sexual relationship because she could get into trouble.

The affair began when Carstens volunteered to look after the 13-year-old boy while his mother was being treated in a Houston hospital.

The boy told investigators that when the relationship began it involved just touching her breasts and genitals, but progressed to oral sex. (ANI)