WARNING: Lots of innuendo, actual sex, drinking, slight non-con, and a lengthy threesome are sure to await you if you read this story.

Pairing: Marshall Lee/Fionna/Prince Gumball

Rating: M/NC-17

Summary: Neither of them like sharing, especially not the pretty blonde tomboy with the bunny hat. Just this once, though, working together to make this birthday a memorable one might not be such a bad idea.

Disclaimer: I don't own the characters herein, or the Land of Ooo, or anything associated with Adventure Time with Finn and Jake.

Author's Note: This is just a short teaser chappie, sort of a prologue. The plot begins in the next chapter. :)

Author's Note 2: Re-uploaded this after fixing errors I hadn't noticed before.

Neither man liked sharing. At least, not with each other. It went against their respective prides to share anything, even breathing space. They glared at one another, fighting for dominance, for control, something that came natural to one and was unorthodox for the other. They were like fire and ice, black and white, life and death.

Literally.

There was no option but to share the precious thing between them though. Not now. And it was quite astounding really how well they worked when they were finally in tandem. Like the Moon and the Earth, pushing and pulling the waves now crushed between their bodies.

The waves in question cried out as hands grey and pink roamed over peach, limp with a desperate pleasure she hadn't known had existed until now. As careful as gray and pink were careful not to brush, not an inch of peach was left unmolested. If they made eye contact, it was with pure hatred burning behind their pupils. When something they did made the waves crest higher than before, the victor would smirk evilly at the other.

Marshall Lee and Prince Gumball would never be friends. Just this once, though, they would work together.

It was, after all, a special day.