[ Leviathan cocked their head, still smiling affably and one hand planted firmly on Dean's chest, holding him to the wall. ]

Oh, Dean. Why should he fight? He's tired. Your expectations are heavy, and he's spent so much time contorting himself into shapes to please you, to protect you. I promised him I'd look after you instead, for a change. Give him a bit of a breather, hm?

[ They leaned in close, lips grazing the shell of Dean's ear, voice a rolling hiss. ]

Don't worry. I'm going to take good care of you.