Dean snatched his arm suddenly out of Seamus' grasp at the suggestion of fake dating his sister. "Circe on a stick, Seamus why the hell would you suggest that! That's creepy and wrong. Why would you...? Never suggest anything like that again." Logically he knew Seamus was joking, but unfortunately logic wasn't always on his side these days and something had snapped and suddenly Dean was standing, his voice raised, and wand in hand, although it wasn't actually pointed at Seamus. He was breathing hard, staring down at his friend, rage coursing through him as his fight or flight response engaged.