Synopsis: They thought defeating him was hard? That was nothing. Try babysitting him. Loki is placed under house arrest at Tony Stark's Malibu home, under the supervision of the Avengers. Slightly OOC AU Hilarity Ensues.
Comments: This story is pretty much one long extended Crowning Moment of Funny. Some of the Avengers are slightly OOC, but this just serves to make it even funnier. Highly recommended and excellent for a laugh.
Synopsis: The Avengers are over protective of one another, we all know that. But when misunderstandings lead to flawed beliefs of who a person is, and when others are judged for misguided actions carried out without thinking, it's hard to know who to protect and defend.
Comments: Misunderstandings abound, and Steve's issues and Tony's lack of self-esteem don't help matters.
Seconded completely, but warning: this is not a happy fic. It's full of angst, and a total Tear Jerker. It is totally worth the read, but have some tissues on hand, just in case.
Synopsis: A series of "prose-based fan movie scripts" that take place within the Marvel Cinematic Universe that features MCU takes on the Immortal Iron Fist and Luke Cage. Contains many references and character cameos from the Avengers films.
Comments: All three stories are complete. It seems like more could be on the way.
Synopsis: For someone he'd hero-worshipped for so long, Steve Rogers in the flesh is a pretty big disappointment. For one thing, he keeps looking at Tony as though he reminds him of someone else, and even if he never says anything, Tony's pretty sure it's his father. A lifetime of not measuring up to Howard's expectations is more than enough, thank you very much, and he's certainly not going to make an effort to live up to any of Steve's. Steve's pretty clearly failed to live up to his expectations, in any case, and that's not hypocritical at all.
Comments: Also, the best post-Winter Soldier fanfic you will ever read. It takes everything seriously, it’s heartbreaking and awful and hopeful and at times bitterly, terribly funny and at other times idiosyncratically adorable and also filled with nightmare fuel and every twisted hard one-step-forward-three-steps-back moment in recovery. Also it celebrates the women in the MCU. Also Sam Wilson is 100% the best friend ever. Also Steve is not, in fact, all that innocent. Also Tony Stark is at times ridiculously perceptive. And Game of Thrones puns. And a twelve-almost-thirteen-year-old chocolate selling neighborhood girl. And an almost religious reverence for really shitty coffee. Warnings for everything terrible one might expect to have happened to the Winter Soldier and beyond.
Comments: It's a simple transition on the surface: What if you gave the Avengers Pokémon? But under the surface, the relationship between the heroes and their animal-like friends grows into a big part of their history: Tony poses on the red carpet with his father's Ninetales. Steve Rogers is reunited with the Growlithe that's been by his side since the Great Depression, now a massive Arcanine. Pokemon are rare on Asgard, and Thor finds himself attracting a lot of baby Electric types. Not to mention Mewtwo and Absol: Agents of S.H.I.E.L.D.!
Comments: This fic does a fantastic job combining the unlikely fandoms of the Marvel Cinematic Universe and Fifty Shades of Grey. While there is more than one Take That at the latter fandom, mostly in the form of various women from the Marvel fandom dealing with him, there is also a lot of examination of the relationships between the various Avengers, including canon ships (Tony/Pepper, Jane/Thor, and Rogue/Remy) but also Natasha and Clint as well as Loki and the rest of the Avengers and familial interactions with She-Hulk and Bruce.