Show them to the classroom

"Why don't you let the men and women here take a look at them?"

The class let out audible confusion. It sounded like a big "huh" in many different voices, but Natalie was sure nobody said huh. Most people saw this coming at this point. She however pretended like it was a question, not an order.

"Because... it is not normal?" She said in the most uncomfortable voice she had.

"Well yes indeed it is not normal. But today we aren't caring about that right class?"

The classroom kept silent.

"Today we are here to LEARN new things. And since you all couldn't keep in line, I guess we have to do it in a way that makes everyone a little more uncomfortable, while also learning more. It's great isn't it?"

Some daring bastards shook their heads. In a normal situation they were heroes. But not today.

"So strip Natalie. Let the lesson begin!"