If you are the bottom or the subby, usually you are the one who blows the other person. Asian gays are often petite and fragile-looking, so they appear more like a submissive one or a bottom one than any other else. In fact, gays in Asia or men, in general, express their feminine a lot more than western men do.
One may think that Asia is an extremely conservative society and they are correct, however, it is also a place where gay people and the entire LGBT community can express well their femininity. Asians have always been fetishized-throughout the years by both men and women and by different races and ethnicities.