Seamus jumped in the air a bit when he felt Dean swat at him. No matter how hard (or not) hard it was, hit arse was still sore and he definitely felt it. "Ow! Prat."
He rolled back over onto his stomach and put his arms down to his side, burrying his face into his pillow. At first, Dean's hands really weren't helping. His entire body felt like a giant knot and he groaned into the pillow for a moment. But as he went on, it slowly started to feel like some of the knots in his shoulders were working themselves out.