Sherlock silently nods his head. Gentle, then.. It doesn't really explain why John had been goading him into some quick and probably painful sex before his memories came flooding back, but that was a question for a another time, or perhaps never

Sherlock figured that the man probably didn't have any lube around, since he had never been with a man, so he waggled his fingers and created a small bowl of something slippery. While his mouth flicked over the top of John's glans, he dipped his index finger in the makeshift lube and ran it down John's balls, his perineum and and then around the outside of his hole, only touching around it at first to relax him. .