It was supposed to be a one-night thing. Changbin didn't expect to hook up with the gorgeous, sharp-tongued guest at Minho and Jisung's wedding, and he definitely didn't expect to wake up alone, no note, no number, just the faint scent of cologne on his sheets and a sore, satisfied ache in his chest. Then they run into each other again. And again. And again. Seungmin, ever pragmatic, proposes a solution: a no-strings, mutually beneficial arrangement. Just physical. Strict boundaries. No falling.