Baekhyun and Kris are best friends. Baekhyun and Kris are raising a baby together. But they're just best friends. 

That's how Junmyeon found himself at a reception with people he either barely knew, or didn't know at all. When Sehun called him a month before the wedding to tell him that his girlfriend had dumped him and he needed a date again, Junmyeon was ecstatic. Not about the break up, but about the thought that he was going to spend the night with Sehun. It didn't go exactly as Junmyeon had thought, though.