Sirius gasped at the incredible sensation. It had been more than a year since anyone besides himself or a plug had touched there, and even when they had, it had never felt anything close to this. Sirius’s legs fell open more and he arched his hips forward and up, hungry and eager, as Remus slowly slid his finger inside. It was tight and a little dragging with only spit for lube, but somehow, that made it even better as it plunged in and out, in and out. Sirius could feel everything, every movement, undiminished, and even more when Remus gathered more spit and slid in another thick finger. Sirius moaned as the burning stretch of Remus’s fingers melted into pure bliss, and Sirius wished that Remus could fill him completely.