When Dean wakes up, Castiel is in bed next to him. When did that happen? The angel is fully clothed, making Dean feel naked in only his sweatpants. A quick glance at the clock reveals that it's just after one in the morning. Dean sits up and gently shakes him awake. "Cas? When did you get here?" Castiel whimpers when he wakes, as if he was having a nightmare. "Thunderstorm." Come to think of it, Dean does think he heard some thunder before he conked out. "Yeah, but why are you in my bed?" "I got scared," the angel replies, flashing his irresistible puppy dog eyes. "Can I sleep in your bed? Please?" He sounds like a scared child, climbing into his daddy's bed after a bad dream. "Yeah, sure I guess" Dean is nonplussed. "Thank you" Castiel says quietly before burying his head among the blankets. Dean quirks up the corner of his mouth in a smile.