Morihiro Saito, two koshinage variations versus yokomenuchi at 6:53.
http://www.youtube.com/watch?v=FeSrySq9SPQ
I can see what Nathan means by "bending over sideways", but this is merely because the technique is slowed down for demonstration and pedagogical purposes. Tori is taught to get full extension (and thus extend uke). Done at speed, it looks much more like the Takumakai clip Doug Walker posted above. Unfortunately I've been unable, in a cursory search, to find any youtube clips of "ki no nagare" koshinage against a yokomenuchi.
Josh Reyer
Swa sceal man don, žonne he ęt guše gengan ženceš longsumne lof, na ymb his lif cearaš. - The Beowulf Poet