• Last updated: Sunday 25 September 2016, 06:58:49.

An Ontario man told a New Hampshire court Wednesday that he spent a long weekend in a Niagara Falls, Ont., motel room, having sex with a 14-year-old girl and her mother - a U.S. lawyer who videotaped the encounter.

The woman, who is not being identified to protect her daughter's identity, is a "predator," a U.S. federal prosecutor told jurors at the start of a shocking child sex abuse trial.

U.S. Attorney John Kacavas told jurors the mother deserves to be convicted on multiple counts of child sexual exploitation and pornography.

The charges stem from an investigation that started when another man who had sex with the mother and daughter turned himself in to police after learning the girl's age.

Kacavas said the woman, in a jailhouse call to her daughter, said "I should have been the mom, not the friend."

But she was neither, Kacavas said.

"The defendant was her pot pusher, her pornography producer and her predator," he told the jury. Kacavas told jurors that one count alleges the woman videotaped herself having oral sex with her daughter.

James Moir, the accused's lawyer, implored jurors to focus on whether prosecutors prove every element of each of the charges beyond a reasonable doubt.

"The issue is not whether (she) is morally depraved," Moir said. He acknowledged that the allegations are "shocking, reprehensible and despicable."

The lawyer was a member of, and had advocated for, the Alliance Defending Freedom - an anti-gay Christian group.