A teen who says a Fairfield Warde High School teacher exposing himself to her delivered descriptive testimony at his trial Tuesday.

The girl, now 17 years old, is referred to by the court as "M." She told the jury during her testimony that Jeff Iwanicki's graphics class was her favorite, and she was there every day during lunch.

But she said there were two incidents that changed that. "M" told the jury that on Nov. 2, 2016, Iwanicki exposed himself to her while he was sitting at his desk. She said she continued to go to class. Then on Dec. 6, "M" said Iwanicki showed her his penis a second time. That's when she reported it to school administrators because she said mistakes don't happen a second time.

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Under cross examination, defense attorneys pressed the girl to the point where she said she wished she never made the claims.

"M" left Fairfield Warde in her sophomore year and is now a senior at Kolbe Cathedral in Bridgeport.

Iwanicki is expected to take the stand Wednesday. Iwanicki told News 12 he is still working at Fairfield Warde.