Sound Change With Labialized Consonant Codas

I thought of something today, and wanted to see if it actually
existed in natural languages.

Has there ever been a case where labialized consonant codas
produced front rounded vowels?  Something like the following:

i > y / _C_w

So...

*kik_we > kyk_we
*mek_wt_wa > m2k_wt_wa

It feels like a natural change to me, but I've never run across an
instance of it.

-David
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"sunly eleSkarez ygralleryf ydZZixelje je ox2mejze."
"No eternal reward will forgive us now for wasting the dawn."

-Jim Morrison

http://dedalvs.free.fr/