he's never had anything like a younger sister before. she's never had an older brother.
Crossover - Percy Jackson and the Olympians & Big Hero 6 - Rated: K - English - Family - Chapters: 3 - Words: 9,068 - Reviews: 36 - Favs: 61 - Follows: 64 - Updated: 1/23/2016 - Published: 9/17/2015 - Rachel D., Fred