Pennsylvania Mom and Son's Friend

(Upper Chichester, Pennsylvania) A 34-year-old local woman, Teri Mezzatesta, has been accused of engaging in sex with her son's 15-year-old friend.

Mezzatesta faces charges of statutory sexual assault and false swearing in official matters by falsely claiming she was sexually assaulted by the boy.

In the affidavit, the 14-year-old son tells police he witnessed his mother having sexual intercourse with his 15-year-old friend who was over their home.

The son told police after he and his friend had been smoking pot, he fell asleep. Sometime later, he was awoken by the sound of his mother's voice.

That's when, the affidavit states, he walked into the living room and saw his mom and friend having sex. The son punched his friend in the face and kicked him out of the house.

The affidavit says Mezzatesta told her son not to tell police because she could go to jail.

The son's friend soon returned and told him he had nowhere else to go and he allowed the friend to stay the night. Because the friend's cell phone died, the son lent his friend his phone.

Two days later, the phone was returned to the son and he saw text messages between his friend and his mother that were of a sexual nature, the affidavit states.

The son then went to school officials who then contacted police.

Mezzatesta was booked and released on electronic home monitoring.