Word Count: ~3,000
Disclaimer: Don’t own, just having fun with them.
Warning: French dirty talk
Summary: Written for this prompt in shkinkmeme : So, any!Sherlock is sure his respective Watson doesn't know a word of French, so he starts saying the dirtiest things on Earth to the good doctor just to release some of the sexual tension between them. The problem (or solution) is that Watson knows French and decides to show it off in the most hot, dirty and porny possible way.