I could not agree more with you and your quality taste of what you said caucasian penis over Asian one.
After reading your inner soul and inner feeling, I found your reasons.
This is what I discovered:
I worked in the small farm before in summer holiday. Every nite, I heard fuuny noise but my fren asked me not to be busy body. I could held any longer to have the determination to find out what is that noise. YOu see I worked in the Sheep farm....
To my surprised was that I saw your choiced-male(Caucasian) using a pair of boot to hold the back legs of the sheep and he drop his pants and started to do the thing......... the sheep was crying... so loud!!
Juz wonder when you suck the Caucasian's penis, have this occurred in your mind????
I hope you dont change your choice now....