What an odd little tradition, commanding the couple to kiss. But Castiel knows how to adhere to tradition and do his part, how to entertain guests and be a proper omega - at the same time, Castiel also knows how warm and soft Sam's lips are against his own.

"You should probably kiss me, then", he observes, keeping his eyes on Sam's. He misses Dean nudging Charlie with an elbow, as if to say: 'see, he can be cheeky. My brother got a feisty one after all. this is awesome'.