Dean heard more than really saw Seamus jump up. He tensed for the possible hit, finding himself surprised when a hand touched him without any inflicted pain. The lips against his were the next surprising part. Not that he was against them. In fact, he was very much okay with them precisely where they were. Merlin, how long had he wanted that? He looked at Seamus, seeing him there again. His eyes were back to normal. "You're back," he said, laughing a little.
He leaned over to kiss Seamus again, putting his hands on the other man's hips. Stay right there, you, he thought. Then, seemingly out of nowhere, his mind also added, I can't wait to tell Kevin. He would be getting another hug once he found him.