It's different from last time.Last time it was dirty,angry,desperate and so hot.This time it's slow,sweet,still desperate but perfect.
Last time he fucked Sam hard. So hard little Sammy would always remember,he marked Sam,claimed him as his.His fear of his brother might leaving him again once this was over turned into anger turned into lust.Between Sams pleas for "...anything...more...Dean" he made him swear to never leave,to always remember who he belonged to,to be Dean's.
They didn't talk about it the next morning and Dean accepted that it would never happen again.
The next time,THIS time it was Sam coming to him,Sam forcing him down on the bed,making Dean feel his strengh without being threatening,Sam who stopped whatever questions Dean might ask with his talented tongue,Sam who slowly sank into him.
And now Sammy is murmuring endearments into his ear,telling him how much he means to Sam and Dean feels the tears slipping from his eyes.He has never felt that vulnerable before and for a moment his stomach twists and he feels like he might has to throw up.But that would mean leaving Sam and leaving the secrurity he provides and that's something Dean's not yet ready for,will maybe never again.
Some part of Dean will probably never believe Sam will stay,but that's a small part,'cause for all they do,they don't lie to each other.Dean hates that part of himself even more than the part who has already chosen a gun and a bullet to end Dean's life just in case anything happens to both Dad and Sammy,because that part means he doesn't trust SAM.But for now,with Sam's hot breath on his neck,telling Dean "You're mine" and the strong grip of Sam's arms telling him "I'll never let you go" and Sam's mouth telling him "I love you" he can just ignore it.