There is a sequence Cluedog did a while back that is both Transgender and Race Change. The title is called
Wizard to Wentch(es). Starts of with a Wizard that slowly transforms into a sexy Bimbo, but then she changes her race from black to Japanese, to a Latina, and then back again. It's a really detailed transformation and like her reaction to each of the changes. It also inspire me to write an AR/AP section with race elements for AR ARchive's Continuous Stories.
Here's the link for my story if you want to read it.
http://www.ararchive.com/index.php?o...apper&Itemid=4
Just go to Recent Additions and looked for the title 'Women of Different Races'. You might be impressed by what I did.