Last Resort - 12/?, Dean/Sam/Cas in all possible combinations, R

[dreamsofspike]

His wings were on fire, gold and red flames consuming his flesh, feathers reduced to smoldering cinders and falling toward the earth… and then he was falling, crashing with no power to stop himself, no control over the limbs that were now nothing more than useless weight, sending him wheeling and tumbling until he hit the ground in a crumpled, broken heap.