OTTAWA ó†At first he thought it was cool to have a female teacher rubbing his penis during a field trip while whispering in his ear.
But the next day he woke up feeling different and reported it to Brookfield High School officials who called Ottawa police.
That's his side.
The teacher will argue he's lying.
The sexual assault trial of the teacher began Monday in an Ottawa courtroom.
Jennifer Lynne McCalla has pleaded not guilty to sexual assault and interference.
The Crown called several witnesses, including the former student who was 17 at the time of the alleged sex attack at the end of January 2009.
McCalla sat by herself listening and taking notes.
The alleged touching is to have taken place sometime during a field trip outside of Ottawa.
The Greyhound coach bus was dark and a movie was playing on its return to Ottawa with the student sitting next to McCalla, testified teacher Jill Batson.
Batson was in the seat adjacent to McCalla and the student. Batson testified she thought the movie was "dumb" so she kept scanning the bus every five to 15 minutes as any teacher chaperone would do.
The seats with McCalla and the student were in plain view of her. Batson said she never saw any rubbing, testifying as a Crown witness.
"I think I would have seen something out of the ordinary," she said, adding there was nothing draped on their laps to obstruct her view.
It was during this time of her keeping an eye on everyone that the alleged victim testified on three separate times McCalla was rubbing his erect penis.
Each time lasted about 30 seconds and it was over his pants in the span of about 45 minutes.
McCalla would have used her left hand as she was in the window seat.
The student said he didn't say a word when it was happening and didn't try to stop it.
"At the time, I didn't think it was a big deal. I kind of thought of it as any other girl," he testified.
The next day he went to his guidance counsellor, then the principal and then police.
During his testimony the student had a hard time remembering exact details when cross-examined by McCalla's lawyer.
He said when the trip was over, McCalla said goodnight with a sly smirk.
The trial resumes Tuesday.