Between Two Minds (Built Another World #2) by silver9mm
A very well written fanfic, sequel to 'Becoming Less Defined,' AU for the end of season 6. Contains very explicit sex, extremely well described. Recovering from his drugged omega heat, Dean fights against his desire for brother Sam.
'It crumbled. All of it. His carefully constructed walls, his rebuilt citadel of pride and self, the patches he’d slapped over who Sam really was, what he meant to Dean, just fucking everything. Blasted away with Sam’s voice saying his name. A great deluge of bullshit and fear and false fronts and lies to himself and Sam and all of it sloughed off.'
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