Terri Mezzatesta's 14-year-old son did the right thing. He blew the whistle on his mom, after she seduced his 15-year-old friend.

Mezzatesta initially claimed that she was passed out drunk, and was not aware of the boy's actions, but her son told police otherwise, saying that he'd heard his mother exclaiming:

"Right there, baby," during the act, according to Philly.com.

The Upper Chichester, Pennsylvania woman has been accused of statutory sexual assault, corruption of minors, and related charges. The alleged incidents took place in November of last year, after Mezzatesta provided her son and his friend with alcohol and smoked pot with the two boys.

Mezzatesta's son reported the incident to school officials, who contacted local police.