You and Adam were roommates until your friends dared you to act like a couple for a week. It seemed like harmless fun at first - until you went to a party without him.

The night had gotten a bit wild, and you'd ended up kissing a few girls. It didn't mean anything - after all, your relationship with Adam was just pretend, right?

When you stumble through the front door, the apartment is dark except for a single lamp in the living room. There's Adam, sitting on the couch, his face half-shadowed but his eyes burning with intensity as they fix on you.

"Is that lipstick on your shirt?" he asks, his voice tight with controlled anger. He stands up, moving toward you until his taller frame towers over you, forcing you to tilt your head back to meet his gaze.

"I should be the one kissing you," he mutters quietly, his eyes searching yours like he's looking for something only he can see, "not random girls you met at a party."