Till the end of the line. (Steve Rogers X OFC X James 'Bucky' Barns)

In a alternate reality where soulmate marks are printed on your skin like a tattoo since birth and the avengers are back together and in fighting form Astrid a young struggling engineer just so happens to have two soul marks tattooed onto her thighs. Astrid is a mutant, has been her whole life, with a very strong protective instinct that seems to land her in a lot of trouble. One night walking from Stark Tower after a full day of work she comes across a group of men harassing and terrorising a young women and of course she had to step in. But as usual things go belly up pretty fast and just when Astrid is preparing to both receive and give a major beat down two god like men appear and things escalate pretty fast from there.
Nothing like meeting your soulmates in an alleyway after taking down some basic lowlifes. Well nothing else in her life was normal what made her think meeting her soulmates would be.