HARRISBURG, Pa. (CBSNewYork)– A Pennsylvania high school student had the experience of a lifetime at prom, but not in the way she and her family had expected.

She got tossed out of the event for challenging a dress code, CBS2’s Alicia Richards reported.

Ever since Aniya Wolf was a little girl, she dressed like a boy.

“I’ve just always been like this, ever since I was little,” Wolf told CBS2.

She is not transgender, she was born a girl and feels like a girl. Wolf is a lesbian who doesn’t want to wear girly clothes.

“I was always more masculine. You wouldn’t catch me playing with any barbie dolls, I’ll tell you that right now!” she said.

Throughout her three years at Bishop McDevitt, her school uniform was strictly a shirt and pants. Then, something suddenly changed, according to her family.

They said a last-minute email explained girls had to wear a dress to prom. Wolf’s mother called the school.

“I told her that I had read the dress code that was given to the students and I didn’t think that it precluded her from wearing a suit,” Carolyn Wolf said. “I said that this was very unfair particularly at the last minute. We had gone out and bought a nice suit. I think my daughter is beautiful in a suit!”

Aniya had been looking forward to the night for so long that she decided to head over to the prom anyway. But she said she got thrown out.

She said a school official took her by the arm and said she was going to call police, so she left.

“You know a lot of girls’ dresses — I mean I’m not saying that all of them are this way — but they do show a lot of skin. I think I’m dressed pretty modestly,” she said.

The school said it first informed parents of the dress code three months ago and that it expects students to follow the rules.