Haywire (Lab rats Fan-Fic Series Completed)
A brunette was seen running at lightning speeds to chase bullies, uses her strength to beat them up, and her intelligence to outsmart them. The new girl, Aerie, has met the Davenport family in an awkward run in. They are immediately awed by her serene personality. Before they know it, Chase and Adam are fighting over a girl they just met. Leo knows Aerie is up to something. He and Bree don't trust the new girl for one good reason; Aerie is Marcus' girlfriend.
*This story has been completed, I just didn't want to upload it with all the errors in the trailer, but whateves. Better not than later.