Derek Institutes a Bedtime

After a month of going to bed alone, Derek has had enough.

“A bedtime?” Stiles asks, brow furrowed and face unbelieving.

Derek gives a firm nod, arms crossed in front of him as he stands in front of Stiles, in a worn tank top and sweatpants. He knows Stiles is going to brush this whole thing off and think Derek’s being ridiculous, but when he finds out the consequences, he’ll learn.