5 Seconds of Summer Fanfiction
|Name:||5 Seconds of Summer Fanfiction|
|Fandom:||5 Seconds of Summer|
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5 Seconds of Summer Fanfiction is a fanfic archive for the band 5 Seconds of Summer. It accepts both het and slash and stories of any rating. Many of the stories appear to feature OCs. Though it is advertised as a site for 5SOS, a number of One Direction fics are hosted there as well.
The site appears to be popular, but it doesn't publicly list its membership or story numbers.