Builder55

Looking For A Story

I'm looking for a story I started to read a few years ago. I don't remember the name of the story nor the name of the author.
What I do remember is this:
There was a brother and sister, The sister was a model at the local race track. There were two models at this race track. One of the models had to quit for some reason. The sister of this story talked her brother into becoming her partner in the modeling at this race track, The owner didn't care as long as the brother looked good as a model.
The brother looked good,

Author: 

Looking for a story

I don't remember the author nor the title or this story.

This is what I remember though:

The protagonist is a transgender student who went to another student's house. The boy tried to sexually assault the girl. She stabbed the boy with a letter opener.

The dad of the son who got stabbed wanted her charged with murder even though it was self defense.

Author: 

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