How I would have done season five. Derek finds out about Mark and Lexie between 5x13 and 5x14.
Grey's Anatomy - Rated: T - English - Romance/Drama - Chapters: 2 - Words: 1,021 - Reviews: 10 - Favs: 21 - Follows: 21 - Updated: 6/22/2013 - Published: 4/15/2013 - Lexie G., Mark S.