College au where
Shiro and Keith meet for the first time irl at orientation after talking online about possibly sharing an apartment for months now. They got to know each other wile talking and seem to hit it off quite well. The two get to talking about expenses and complain about their tuition fee. One of them offhandedly and completely joking says if only they could get someone to marry them to cut cost of the tuition. After a few seconds the other says fuck it we’re going to be sharing an apartment together, so why don’t we marry each other to cut back costs. They can always divorce later right? And their would be no need for a layer since it would be more of a marriage of convenience then anything, and it’s not like they’ll have split custody over anything.
The more they talk about it the more appealing it gets. So they been th agree and get their marriage license officiated and their tuition fee cut. Theirs only one catch. They both realize that they actually really like the other and don’t want their fake marriage to end. Now if only they could gather the courage to tell the other about it...