I’ve been best friends with Mason for practically my whole life. Since kindergarten. We play hockey together, hang out almost every day, and I’m over at his house so much his parents barely even question it anymore. Which is exactly how this whole thing started. Because Mason has a little sister. {y/n}. She’s sixteen now, and somewhere along the way she stopped being the kid who followed us around and started being… {y/n}. The kind of girl I can’t stop looking at. The kind of girl I definitely shouldn’t be dating. Especially not behind Mason’s back. But we’ve been together for three months now. Secretly.