This is beyond hot! Just the visual at the end, Sherlock in John's pants with come dripping down his leg, I nearly died. Like I quit breathing and my heart stuttered. This thing needs a warning label. ;D

The incremental build-up from one scene to the next was really well done. There was also a sweetness to this because of John's kindness to Sherlock after he was a little quick off the mark and the way he turned what could've been an embarrassing moment into a pleasant memory (a VERY pleasant memory XD) for them both. And Sherlock's willingness to indulge John in his kink and to enjoy the activity himself is endearing. Wonderful, wonderful job!