Tanya Ramirez, a former teacher at a Texas high school, and Tristian, a 17-year-old student at the school at the time, admit that after weeks of flirtatious texting, they slept together.

WATCH: Teen Claims 29-Year-Old Teacher Pursued Him Before They Had A Sexual Encounter

In the video above, they recall the night of May 30, 2014 when Ramirez says Tristian arrived at her house at 3 am and the two headed straight for the bedroom.

WATCH: Teacher Who Slept With High School Student: 'I Didn't Think It Was Legally Wrong'

Ramirez, who pleaded guilty to an improper relationship between teacher and student, is now suing Tristian and his mother. Tune in to Dr. Phil Monday to learn why, and see what happens when Tristian and Ramirez come face to face for the first time since their encounter. Check here to see where you can watch.