[Dean turned his head, both to lean more into Sam's fingers and to look up at his brother's face. The sound of uncertainty in his brother's voice got his attention.] Just to be clear... do you mean you want to do me with me on top, or you want me to do it to you? I don't wanna try for the wrong thing...

[He was very interested in that second option, but he couldn't bring himself to get near the idea without Sam bringing it up first.]