Castiel was smashed. Literally, he was drunk off his ass for the first time in a while. He let out a loud snort of laughter as he threw himself onto you, which sent the both of you crashing to the floor.

"Happy birthday," Cas muttered into your ear, slumping his weight onto you. Even in his drunken stupor, he remembered your birthday was the whole reason they went to the bar.

"..by any chance, do you have more alcohol?" His quiet voice whispered after a few moments of silence.