Seamus was beyond excited to have heard from Dean, knowing that he was back in England was a bit of a relief for him. He wrote Dean all the time, but sometimes he felt an emptiness without his best friend around. When they had finished their owls, Seamus went to the now empty second room and started to clean up getting it ready for him.
He knew Dean had arrived when Mac started barking. He was generally a quiet dog, but he had this weird sense of knowing when people were at the flat before they even knocked at the door.
So before Dean had the chance, Seamus whipped the door open and jumped into Dean's arms, wrapped his legs around his waist, and kissed his forehead. "I've missed you, you sexy black man."