Oooh, Sherlock, where is your hand going (his other arm is underneath John's other arm, okay)? XD And silly John, you insatiable flirt, don't you know you're already Sherlock's? Stop making the poor man jealous.
I've always imagined Sherlock being selfish when it came to John's attention. I dunno why... maybe because it was implied that he was often the cause of John's failed relationships. LOL.
Anyway, this was done on Paint Tool SAI and a bit on Photoshop.
The characters are not mine.