So for those unaware or new to the 'Johnlock' fandom, there is a meme of John wearing bright red underwear.
Which I believe was instigated by this wonderful person
I already had the idea of doing John and Sherlock in Star Trek garb and the 'red underwear' meme seemed to fit in well. Plus John being Bones was just a given
Not sure if I'll do more 'cosplay' comics, it depends if I come up with more ideas.