[Dean's eyes rolled back in his head when Sam began to push into him. He stilled against the bed, concentrating on the feel of Sam stretching and filling him. It burned a little, but that was to be expected after the night before. It didn't matter. He wanted to feel this. Wanted it to linger.] Sammy. Sammy... [He was practically keening his brother's name, fists clenched in the sheets to hold himself still.]