Author's Note: Twitfic! Each section is tweet-length (under 140 characters). There was also not supposed to be quite to much Macbeth. I apologise also for the centred formatting, the site was being a tit and wouldn't let me do what I actually wanted to.
Spoilers: Up to the end of season 9.
{i}
{split knuckles}
Dean comes home with bloody knuckles and a smirk and Sam doesn't talk to him for sixteen hours.
The first thing he says is, "I won't tell."
{ii}
{split lip}
Sam tells him smoking kills.
Dean says he won't live long enough to find out.
Later, Dean's blood and spit on Sam's fist smells like smoke.
{iii}
{first hunt}
There's blood under his nails and it won't come out.
He's Lady Macbeth, and he finally understands the play.
He leaves town before finals.
{iv}
{the end}
Jess cuts her finger making dinner and Sam laughs because she's a terrible cook.
The next time she bleeds he doesn't laugh for six weeks.
{v}
{welcome back, sammy}
Dean sings Blondie in the next room while Sam showers.
He watches blood and dirt circle the drain, and he hates that it feels like home.
{vi}
{freak}
There's blood in his veins and it won't come out.
Then Dean's gone and Ruby's there and he dreams that his eyes have turned yellow.
{vii}
{touchstone}
Dean still stares at the fading scar on Sam's palm when he thinks he's not looking.
Sometimes, it's the only thing that makes him feel real.
{viii}
{salvation}
He tells Dean, "I'm fine," until he believes it himself.
He tells himself he's not a freak anymore.
He tells Dean, "They're purifying me."
{ix}
{exit ghost}
He doesn't remember but he dreams about it anyway.
In the morning he uses a whole bar of soap trying to wash Kevin's blood from his mind.
{x}
{i'm proud of us}
I am in blood,
Stepp'd in so far that, should I wade no more,
Returning were as tedious as go o'er.
He doesn't remember whose it is anymore.