A British Columbia woman who arranged to meet with an undercover agent she thought was a divorced father in Virginia so she could have sex with his children pleaded guilty Wednesday to a federal coercion and enticement charge.

Theresa Goddard, 45, let out a sob as a federal district court judge in Alexandria finalized her plea to the serious sex offense, which carries with it a 10-year mandatory minimum sentence and possible life term. Goddard admitted that she thought she was arranging to have illegal sexual activities with two young children, ages 9 and 10, when she corresponded with a man she believed was their father in June.

The father was actually an undercover federal agent, and Goddard was taken into custody after she flew into Dulles International Airport to meet him, authorities have said. Her attorney said in court Wednesday she had no prior criminal record.

Prosecutors in the Eastern District of Virginia routinely handle child porn and sex cases — and those cases routinely stem from undercover investigations — but they typically do not involve women as the alleged perpetrators. Goddard is scheduled to be sentenced Jan. 10 at 9 a.m.