Disclaimer: I own nothing you may recognise.
Author's Notes:
I haven't seen Thor. Yeah. So I'm working with what I could gleam from Avengers, sorry if it didn't ring true. I'm a bit shy, this is my first slash smut and I had no notes for this - or anything really - at all on tumblr (do they hate me/this? I'm sorry tumblr!) so I really hope it's not bad. Erm, enjoy, hopefully?
Thor arched upwards, his hips losing all sense of rhythm as he felt himself nearing climax. His hands grabbed blindly at Loki's armour and tugged his brother closer, trying desperately to capture those smirking lips with his own.
"No!" Loki hissed and his hand clamped down over Thor's mouth bruisingly. "Don't you dare!"
Thor shook his head half-heartedly in an attempt to loosen his brother's suffocating grip, all to no avail. His chest heaved as Loki slammed himself down onto him roughly but his hungry lungs were unable to get their fill of oxygen, to fuel his thrumming heart. Loki pushed back and his eyes squeezed closed as he worked himself frantically over the edge. He painted Thor's stomach white and smacked his free hand down on the blonde God's chest in an attempt to remain upright. Thor shook, his eyes rolled back in his head and his air-starved muscles trembled as his hips stuttered an uneasy pace.
When Thor came back to himself, he was lying on his side, face pressed into the cool of the sheets and his mouth drank in oxygen greedily. Loki stood beside the bed, attaching his lower armour and avoiding Thor's gaze at all costs. When he finally did meet his eyes his face was unreadable.
"This changes nothing." He spoke softly. He seemed to linger upon the edge of saying more, before making a silent exit, leaving Thor gasping for air and clutching sheets that smelt of the creature he could not quite call his brother.