Tonystarkssister Stories

Isabella Stark is Tony Starks twin sister and they don't get along. Isabella also has first hand experience with Hydra. So what will happen when Nick Fury sends her to h...

↬' 𝚃𝙷𝙴𝙰. 𝙱𝙾𝙾𝙺 [𝟷]: c o m p l e t e d ➤Tony didn't only lose his parents that day, he also lost his little sister Mia in the car crash. But what happens when sh...

↬' 𝚃𝙷𝙴𝙰. 𝙱𝙾𝙾𝙺 [𝟸]: o n g o i n g [H I A T U S] ➤ Ex-hydra assassin Thea, now Emilia (Mia) Stark, is back reunited with her brother Tony Stark, with even more...

Leana has the ability to tell if people are lying to her. But she needs to keep it a secret from her idiotic brother Tony Stark. If she didn't, well let's just say she'd...

Avengers x reader oneshots mostly written out of boredom and what I think is talent but not sure.

It's the song Satisfied from Hamilton. It's an AU btw. The different Avengers meet at one of Tony's parties before the group forms, so Steve and Tony don't know each oth...

Steve Rogers x OC Endgame spoilers. The OC is Tony Stark's sister. One-shot, non canon.

meet Victoria "Tori" Marie Stark she is the younger sister of Anthony "Tony" Howard Stark you may think her life is amazing and that she has the best...

Reader incorporated in Endgame's story occurences as Tony's sister. To whomever finds this story among thousands of amazing pieces on this platform: Remember, the desser...

My Parent have been dead for a while now, but when the lawyers had finally gotten round to the discussion of where I'd live, they just handed me an envelop and an addres...

What happens when Tony Stark has a secret sister? Bucky Barnes has a mystery child? And the two become best friends. Read as Kate Stark and Anne Germaine take on the wor...

Reader has a Panic attack and calls for Tony since he kinda knows How to deal with them.

Evelyn Stark's parents died when she was seventeen. They were murdered by the Winter Soldier. Now, Bucky Barnes is in her kitchen. and he's hot. fuck. he's hot. This...

Amelia "Mel" Stark, yes Stark, is Iron Man's sister. Tony and her are pretty similar considering their brown eyes, and sarcastic personalities, although they d...

What happens when the daughter of Sirius Black loses her mother and has to bounce from each of her uncles houses, one in the United States and one in England. Meet Kaida...

Elizabeth Stark, a rich and genius woman. Daughter of Howard and Maria Stark, a brother to the famous Tony Stark, also known as Iron Man. After their parents death caus...

cruella stark is tony stark daughter and hates everyone even thou she has powerful powers she is different from everyone else she is a frost giant but keep it a secret f...

"To the divine, mischievous spark in you" Isabella Stark, Tony Stark's lesser known younger sister becomes an Avenger, unaware that this might just blossom int...