Steampunk Princess (Generator Rex/Ben 10 crossover & love triangle)

Kelly Miles is a pretty normal girl...right? Nah, not really. I mean, other than being able to control her nanites inside and kept her memory, and has some pretty cool powers like shape-shifting and white magic, and some other cool stuff, she is perfectly normal. She is 15 and has a mother and a little five year old sister who is unfortunately very curious for her own good and knows of Kelly's powers. She meets three boys all good friends one day after she moves into the cities at her new school. She also meets another boy and his girlfriend, Gwen and Kevin, who are cousin and best friend to Ben Tennyson, one of her new friends. She also meets Rex Salazar and Noah Nixon. Well, seems cool, right? That is, until one day something changes the way things flow, how three huge enemy forces combine to cause new monsters to appear and forces Kelly to become a secret hero all her own. She knows she has to hide her abilities and all to others, but how is that fair when you know about who your new friends really are? Not so good. So when a love triangle sparks between a certain Nanite controlling boy and a Plumber that can morph into ten monsters, things start getting quite bumpy.