1) art imitates life (http://archiveofourown.org/works/334076/chapters/539807) by Molly C
Imitating Life (http://littlehollyleaf.livejournal.com/436038.html) by littlehollyleaf (also meets no. 3)
Blazing Saddles (http://archiveofourown.org/works/432768) by Hobnailedboots isn't strictly french mistake but Misha lands in sam and dean's reality.
3 and 4 I've read some good ones but can't bring them to mind which of the many I've kept might be those. If I think of them I'll add them here as a comment. You could try the community team-free-love (http://team-free-love.livejournal.com/). There are a lot of foursome porny fics but also some nice big brother type fics.
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Date: 2013-02-18 10:10 pm (UTC)art imitates life (http://archiveofourown.org/works/334076/chapters/539807) by Molly C
Imitating Life (http://littlehollyleaf.livejournal.com/436038.html) by
Blazing Saddles (http://archiveofourown.org/works/432768) by Hobnailedboots isn't strictly french mistake but Misha lands in sam and dean's reality.
3 and 4 I've read some good ones but can't bring them to mind which of the many I've kept might be those. If I think of them I'll add them here as a comment.
You could try the community team-free-love (http://team-free-love.livejournal.com/). There are a lot of foursome porny fics but also some nice big brother type fics.