Frost and Flare

Takes place after Ironman 3. The Extremis stayed inside Pepper and its presence destroyed her life with Tony - and that was before a banished Loki stumbled upon her. Then her new roommate decides to go play good guy, and she gets dragged into the fray to become the superhero duo "Frost and Flare"... but they can't keep the Avengers away and in the dark forever...