Sherlock's head went down, laying on the ground on top of his crossed arms, his arse high up in the air.. Oh what a sight he must have been at that moment.

He fought with every fiber of his being to not let his stubborn pride get the better of him and stop this before it began. His body wanted it, even if his brain did not. He wanted to be fucked by John Watson.

When John's finger teased against his wet, sensitive hole, his entire body lit up with pleasure. His eyes, which had been closed, shot open. "Nnnnnng!" He pushed back with his hips, trying to get that finger inside of him.