She can

Shaking, Vanessa stood up and stepped off the bus. One of the doors opened and the crowd around her dispersed. She had no idea which way her harassers had gone, or what they looked like. Vanessa pulled the back of her shirt away from the skin of her back. It was already clinging to her skin because of her sweating, and now felt extra sticky in the back. Vanessa sighed and decided to go to school, no matter what had happened.

At the next intersection, she looked both ways. Nobody in sight. She crossed the street and continued her trek to school. The school grounds looked empty, as it took her long enough to reach the school again that the classes were already in session. Vanessa snuck inside the school and entered the unisex toilet to clean up before going to class. She would make a scene anyway, arriving late. Vanessa studied herself in the mirror. Her shirt was clinging to her skin, exposing the forms of her overflowing bra through the fabric. She turned around. Her assailant had left a very visible white stain on the back of her jeans over her buttocks. It would be no second question as to what it was if her classmates were to see her.