Izzy Walker (Cowboy AU)

Best friends with Nathan growing up, and despite winding up on similar paths they actually didn't stay in contact for a while. 

Her previous partner backstabbed her and left her to take the fall for something big. She has trust issues because of it. But she does flirt with the idea of Nate being her partner in crime.

Sleeps with Lucky, the sheriff of another town in an attempt to take something from him, though she may have gotten more than she bargained for and winds up pregnant with Nico. Having a kid really throws a wrench in the whole dangerous outlaw life. She keeps him to herself for quite a while, she doesn't go back to that old town for a while anyway. Why bother looking back? She goes to Nathan for help, instead. He scolds her a bit... A SHERIFF of all people?! Jeez... But he's supportive and helpful.

She gets badly injured in a heist gone wrong, she's scared for her life and doesn't have much choice but to take Nico to his father and head back to her hideout alone. It's a shock to him, no doubt, but Izzy doesn't really have the time to worry about what he has to say about it.
However, once Izzy finally tells Lucky, he may as well help out, it's safer with the sheriffs (Lucky now married to his partner and co-sheriff) than with her always on the run or in their not too glamorous safe house. He spends a lot of time growing up on the sheriffs' farm. Izzy knows it's for the best, but really misses her son and wishes she could've provided a better life for him with her.

Lots happens. Izzy eventually settles down on her own, after yet another injury, this time to her leg. It takes a while to heal and she doesn't want to risk not being able to run away if she gets into trouble. The sheriffs let her stay with them so she can be with Nico. With the help of her new kindof friends Lucky and Garland, she starts to settle into the cozy town life, and the thought of having a home with her son seems more and more realistic. She sings and plays music to pass the time as her leg heals up, and ends up working at the local saloon as entertainment.

She has a horse named Daffodil that absolutely despises Lucky for no reason and torments him endlessly by stealing his clothes off the clothesline and spitting water into his boots, among other things.

Theme Song: 
The Lethal Temptress - The Mendoza Line
Mama - My Chemical Romance
Forever - Mumford & Sons