"And you know how much I enjoy when you use it."

The smile deepens a little, crinkling Castiel's eyes. Their best nights see Sam make use of Castiel's mouth and ass, thoroughly wrecking the former angel until he knows nothing but his subspace and Sam's warmth everywhere around and inside of him. The fact that they've gotten here sometimes still astonishes him. It seems so strange that this sort of happiness was granted to them, bumps and failures like tonight not withstanding.

When Sam gets to his feet again, Castiel moves into his arms, kisses him slow and sweet. He rarely says 'I love you', shows it instead.