Written to: Lovers in Japan - Coldplay, crosspost from AO3
Obdormition: when your limbs fall asleep; numbness caused by pressure on a nerve
Thor wakes up in the middle of the night to find his right arm missing. When he looks over, it is still there, firmly attached to his body, but it might as well be someone else's for all it feels. Certainly it cannot help that Loki is coiled about it like a snake, his thighs firmly wrapped around Thor's wrist, making soft, repetitive motions and biting into the covers, and Thor curses his useless arm for not being able to feel.
He watches Loki roll his hips into the mattress, into Thor's hand, watches the fluid lines of his back as he arches down and presses a sob into the curve of his hand. Loki's face is turned away from him, but Thor can just catch the twitches at the corners of his mouth as he tries to stifle a whimper and fails.
Thor keeps himself very still, watching, and when Loki's entire body stiffens next to him before breaking out into loose-limbed trembles, Thor finds that he can feel the soft warmth trickling over his fingers and seeping into the sheets, and he grins, turning his face away so that Loki cannot see.