[Dean's lips curled up at the corners, but he didn't stop his work on Sam's finger. It was given all the attention he would have given Sam's cock, licking the length and sucking rhythmically. He could feel Sam getting hard again and he clenched his muscles in response, encouraging.]

[The finger popped out of his mouth with a wet, obscene sound and he licked his lips, eyeing Sam with a feral look.] ... about you fucking me?