Erik is a lot less dignified, don't worry. While Charles is worrying about wanting to go pee with dignity, Erik is battling the world's worst hangover. He's rolling over onto his back, heel of his palm digging into an eye -- silently grateful for the lack of sunlight in the room.

He's groaning, because that little dull ache is rapidly becoming full blown pain. He hears only half of what Charles is saying, but enough to manage to sit up (and regret it immediately). He exhales, then reaches to grasp the other man's wrist, making sure that he's still there, that his lover's all right. He can hear the ragged tone, reminded once again of what had transpired at the beach.

"...Are you all right?"