alex51324's "Threeseome" universe (http://alex51324.livejournal.com/tag/threesome) is House/Wilson/Chase with dom!House, sub!Chase, and Wilson who grows more and more sub over time.
whiteraven1606's "Binding Forces" universe is also House/Wilson/Chase, but it's Wilson who is very into being dominated. The author also has other threesome stories with different levels of BDSM, on the fic list here (http://whiteraven1606.livejournal.com/9531.html).
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