Natasha is an assassin on the run. Y/N is a FBI agent. Would it be so bad if they fell in love?

She's a Professor. She has a wife. She knows its wrong. She just cant help herself.

60 days with Professor Romanoff, lectures, study sessions and out of hours office visits it's not exactly illegal but it's more than immoral. Will it stop you? More importantly Will it stop her? How can she feel so much for you but keep so many secrets hidden? You're forever in the dark, blindfolded by her affection but the sun will rise eventually and the light will shine the question is, when it does, are you willing to forgive and forget or are her secrets just too much?