Sherlock asks John to participate in his experiment on the sensitivity of the human epidermis that quickly escalates into a tickle war.
Sherlock - Rated: T - English - Humor - Chapters: 1 - Words: 1,532 - Reviews: 2 - Favs: 6 - Follows: 1 - Published: 2/17/2014 - Sherlock H., John W. - Complete