Despite how turned on he was and how damn needy, that shove was all it took for Sam to pull away, sitting back on the hard floor on his knees. He's breathing was laboured as he tried to catch his breath, chest heaving, lips swollen. Not to mention his ruffled hair and shirt which both screamed 'just been shagged' even if that wasn't strictly the case.
He wasn't sure where to look or what to say. Seriously, what was the protocol for conversation after sucking face with your damn brother?! This was so messed up. It was more messed up than screwing a demon.