Other Days by Neaf - PG13 

Summary: Kurt meets Cooper, and finds out just how red Blaine can go.

http://shotgunanderson.tumblr.com/post/18146904639/other-days-anderbros-pg-13

Tall Tales by Neaf

Summary: Hurricane Cooper is back. Blaine is unimpressed about the lack of storm warnings.

http://shotgunanderson.tumblr.com/post/17749131932/tall-tales-anderbros-pg

Theory of Relativity by Doonarose - NC17

Summary: They though they had the house to themselves. Snuggles on the couch. Popcorn. PJs. A movie. A quick blowjob. And then, suddenly, they had company. 

http://doonarose.tumblr.com/post/17368436049

A Night In by Doonarose - PG13

Summary: The aftermath of Cooper catching them getting hot and heavy on the couch. A continuation of ‘Theory of Relativity’ but you don’t really need to have read it.

http://doonarose.tumblr.com/post/17615365105

No Fortress So Strong by twobirdsonesong

Summary: It’s not easy being an Anderson, but Cooper does what he can to be the best brother he can be.

Basically backstory about the relationship between the Anderson brothers told in a series of vignettes

http://www.scarvesandcoffee.net/viewstory.php?sid=2722