You could do a college genderswap where Matt's a girl. Or imagine a college scenario between her and Marci (and Foggy or Matt if polyamory is your thing).
You could have her have been working for Fisk behind the scenes in S1 or even after and come after Karen as retribution for Wesley and then things get hot. Or have her be hired by Vanessa afterward to help her rebuild her husband's empire while he's away.
A scenario where Matt encounters and she's injured so he brings her to Claire and you is also possible.
Re: Lack of Femslash?
You could do a college genderswap where Matt's a girl. Or imagine a college scenario between her and Marci (and Foggy or Matt if polyamory is your thing).
You could have her have been working for Fisk behind the scenes in S1 or even after and come after Karen as retribution for Wesley and then things get hot. Or have her be hired by Vanessa afterward to help her rebuild her husband's empire while he's away.
A scenario where Matt encounters and she's injured so he brings her to Claire and you is also possible.
I could go on endlessly.