Dean’s favorite scent is peppermint. He doesn’t care for peppermints at all usually, but every time he hugs Cas, he can be sure to smell the sweet, numbing smell filling him up with a sense of warmth and happiness.
Whenever he sees candy canes during the winter, or candies from old ladies, his mind always goes to Cas. He’d never tell anyone, but he always kept one or two peppermints in his pocket just in case things got bad and he needed that little piece of home, even if they always made him felt tingly and strange.
When Sam finds the peppermints one day hidden in the laundry, he questions Dean about them.
“Dean, what’re these doing in the laundry?”
Dean looks up from his research to see his younger brother holding the candies in his palm. He must have forgotten to take them out. “It’s candy.”
“Yeah but it’s peppermint. You hate peppermint.”
“No I don’t.”
Sam snorted. “You’re allergic to anything peppermint.”