Why does the skin turn ORANGE in color???

[jks_photo]

Hi Guys,

this problem has been bugging me for a while and I can't seem to figure it out.

whenever i take pictures on a bright day and I use a flash for fill the subject's skin always seem to turn orange like this:

shot seetings were ISO 50, whitebalance was set to 5200K.

After post process here is what I get:


I adjusted only the WB to a setting of around 4400K during post to get second image.

I could easily correct it during post, but is there a certain technique wherein I can take these photos without my people turning orange..???

thanks for looking!!!

james