"Have a nice, human life, Katherine." "She's the spy, her secrets have secrets." After becoming a human again, Katherine Pierce struggles to survive and everything becomes worse when she is captured by HYDRA and turned into a lab experiment. She is ordered to kill the Avengers, but experiments aren't always successful. Katherine/Steve.

(AU) The characters might be a little OOC. Caroline and Natasha are sisters. Natasha and Steve's mission is to find out what's going on in the small town Mystic Falls, but the real problem is for Natasha to keep her sister safe. But can she do that and save the world, and what about her new affection toward Steve Rogers.

A continuation of Blood Siblings and Once More. One shot. Katherine, Loki, Thor, Odin, and Frigga decide to try family therapy. It doesn't go well.

Second installment of Blood Siblings. "Don't act cute." "Oh, Elijah, I don't act, I am cute." Klaus Mikaelson desperate to save Father Kieran requests Katherine Pierce's help. The only person who can save his life. Katherine is adjusting to her new life and wants to see some familiar faces. Though, they might not want to see her.

AU. "Why do you defend her so much?" "Because she is my sister, she could kill a thousand men and she would still be my sister." Katherine Pierce is actually Princess Katerina of Asgard and Thor and Loki's baby sister. She hasn't seen them in over 500 years and now she's aging and dying and her brothers are determined to save her life. But dealing with family isn't always easy.

[Completed] Running from the past, Katherine is dragged into Avenger business because of what she is and what she knows. Only a woman untouched by time can help the man out of time as the Avengers face a Chitauri-vampire alliance looking to subjugate humankind again.

AU. Post 4x23. SHIELD recruits Katherine Pierce to work for them after she finds out that she's permanently stuck as a human girl. Despite her worries she becomes a skilled and talented agent and is beginning to form a new life in New York. She has no desire to return to Mystic Falls, but trouble rises and she is forced to deal with past demons. Katherine/Steve.

Klaus Mikaelson saves a certain red head agent. Natasha Romanoff isn't really grateful. One shot. Natasha/Klaus.

It's Valentine's Day. Rebekah Mikaelson is unhappy after another fight with Klaus and she goes to a bar in New York to spend the night. There she meets Steve Rogers, another lost soul. One shot. Steve/Rebekah.

The Avengers discover Nick Fury has a kid and Nick finds out his daughter is dead. But when his daughter's secret supernatural life is mixed in with his super-spy life, how many secrets does this family have? And how many revelations will they be able to take? Warning contains OC, and some spoilers

Nick Fury knew that even the best doctors in the world couldn't save Phil Coulson. So he called in a favor to his only niece.

"What's your name?" He demanded./"Tony Stark, genius billionaire playboy philanthropist."/Damon smirked. "You say that as if it will save you. Take off the suit." Light, quick crackpair.