Demon dean's humanity

Chapter 3: Lashing out

Dean went into the bar and quickly saw the guy that beat up Sam and walked towards him and said "I need to talked to you for a second" then walked away with the guy following him, when the guy came out to the back alley and closed the back door behind him he said "so what did you want to talk to me abou-" before his could finish what he was saying Dean punched him hella hard the guy -Roy- looked angrily at him and yelled "WHAT THE HELL MAN" Dean pushed him toward the brick wall with his hands clutching Roy's shirt and he snapped "you think it was funny hurting my brother like that huh, well let me tell you something whoever hurts my brother doesn't get to live" and then he began punching Roy over and over till Roy suddenly punched him and Dean fell to the ground then saw Roy's eyes turn black, realizing that Roy was a demon dean's eyes turned black as well and he got off the ground and jumped on top of Roy and just lashed out punching Roy again non stop till a bar tender saw them and broke up the fight and told Dean to leave. when Dean came back to the bunker he went straight to sam's room to check on him, as he saw sam's sleeping form and smiled warmly and all of a sudden he saw something dark under his brothers blanket, when he pulled the blanket away he saw blood and as he carefully pulled up Sam's shirt he saw a long cut on Sam's side suddenly seeing that Sam was a little pale so as he pulled Sam's shirt back down and the blanket over Sam he said "we'll talk about this when you wake up" under his breath and left to go get a beer.
Comment what you think of the story and these chapter plz :)