Castiel and Gabriel fight for Sammy's affection; "Taste Test" by aerithqoc. I loooove all of her works!
http://aerithqoc.livejournal.com/1776.html#cutid1
Summary: If he were a nice brother, he would’ve helped his little brother get the man of his dreams. As it happens, Gabriel is not a nice brother. And what Castiel wants, Gabriel will get. Or at least he’ll try to get. Doesn’t help that the man of Castiel’s dreams is completely unaware of what’s happening.
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http://aerithqoc.livejournal.com/1776.html#cutid1
Summary: If he were a nice brother, he would’ve helped his little brother get the man of his dreams. As it happens, Gabriel is not a nice brother. And what Castiel wants, Gabriel will get. Or at least he’ll try to get. Doesn’t help that the man of Castiel’s dreams is completely unaware of what’s happening.