[KKBL]

A MARRIED teacher romped with a lad of 13 more than 300 times after she became a mother figure to him, a court has heard.

Reports say Christine McCallum, 29, allegedly stole the teen's virginity on a couch as her husband slept upstairs.

The primary school teacher has been charged with 11 counts of statutory rape between February 2006 and November 2007.

The US court heard that the woman regularly invited the teen and his younger brother into her home to support the boys' single dad.

They were offered food, somewhere to sleep and help with their schoolwork in Rockland and Abington, Massachusetts, the Boston Globe reports.

Exposed

The pair then allegedly had sex hundreds of times, including unprotected romps in the shower and on the kitchen and living room floors.

McCallum has denied all the allegations and was seen in court holding her husband's hand.

The woman's lawyer Frederick McDermott said: “She tried to mother the child because she felt sorry for them."

But the alleged affair was exposed when a friend of the lad told his mum the pair were having sex.

She passed the information to the boy's father, who called in the cops.

Prosecutors said the boy later told officers he and McCallum had sex almost "every other day", often right under her husband's nose.

The alleged liaisons ended in November 2007 after McCallum discovered the boy had texted other girls and became jealous.

The trial continues.