My bad little boy (fiolee)

Marshall lee and Fionna have been friends forever. He's her best bud but what will happen when she starts to develop feelings for the vampire king. and the shocking turn of events when gumball realizes that he's in love with Fionna. What will happen then.

Disclaimer
I do not own Adventure time the people who Make Adventure time do. If I owned it there would be a lot more than just 2 Fionna and Cake episodes. I do own the story line and all of the characters that I added.