“Stop toying with me, Dean” Cas growls, and Dean looks up at him, smirk blooming on his all-too-pleased face.
“Well I would, if you would stop interrupting me,” he says, and flicks his tongue in a way that makes Cas moan.
“I only ineterrupted to say ‘I love you,’ that is not a worthy interjection?”
Dean leans in close to his ear and thrust down at the same time. “Not if you were interrupting me from saying back,” he admits, and Castiel feels the words vibrate through and light his skin.