The Hour of the Wolf by Suaine

The Hour of the Wolf - Suaine

An interesting fanfic in which Stiles is turned into an alpha werewolf and Derek must find a way to accommodate a second alpha into the pack. Features misunderstanding and mutual pining. No sex.
description
'The fact was, Stiles had done something beyond stupid. He'd gone and maybe fallen a little bit in love with the werewolf pretending to be his boyfriend to save his life. There wasn't even a hotline for that shit.'

Source: http://archiveofourown.org/works/390038?view_full_work=true