[The bucking of Sam's hips was something Dean expected, although it still kind of took him by surprise. The little brain function he still had going was working out how to take the thrusts without choking when he felt the tug on his hair. As completely lust addled as he was, the pleading in Sam's tone worried him. Had he hurt his brother somehow?]

[Dean released him immediately and climbed up onto the couch, straddling one of Sam's thighs carefully. His hands combed Sam's hair back to better see his face. His pupils were blown wide and his words slurred when he tried to speak through the rhythmic chanting of want you, want you, want you in his head.] What's wrong, Sammy?