While one hand worked to work the muscle, the other reached down to lift a small tube of something else rather important that Tony had taken the time to pack away. With utmost casualness, he squeezed a generous amount of the cool lubricant on his partner's arousal in a steady stream before tossing the tube back to the side. Cleaning came after.

In utter opposition to his protracted teasing up until then, mere seconds passed between Tony coating his nethers, lifting himself up and sinking down onto his hips with a shaky sigh while Thor still had his eyes shut.

'So much for the "no bare backing" creed...'