What is the name of the game when they say, "you are getting warm?" Facking so old, I don't even remember the children's games that even predate me. Anyway, "you are getting warm," however and more importantly, you are using an open mind. An open mind will take you very far in life, besides that it's healthy, and a very good quality to have.
Let me explain what is happening here. Ever learn a second language, or at least try? Now, think about that, as others here either never tried to learn a second language, they forgot, were not paying attention, or a combination of some or all. When you learn a second language, at what point do they teach you medical terminology? How about teach you mathematics in the second language? What about the language used to drive a car? And what about sex, and sex slang??? Second Language teachings treat all these issues (and more) like sex education was like in the 50's or earlier.
When you see or hear about an SP, MPA, speaking Mandarin, Cantonese, English, something no one in this thread does (or they would already told you what I am), they do not typically, or automatically know "sex" talk. Now think about it; White guy in English asks: Greek? Asian Girl: "WTF is greek?" He: "You know anal?" She: "he wants my nail, maybe up his ass?" Sure, you could pull out the phones and use translation but instead and using that open mind of yours, what if that happens x 8 per day, x 50 week? Is that how you want to learn English as a third language sex edition? All you have to do is stop thinking from only one guys perspective, then it becomes evidently more clear.
The situations that an SP might be exposed to is far greater in variation than a semi-legit MPA might (which is where a vast majority here come from and think of), so rather than deal with the uncertainty, it's a hell of a lot easier to simply say, "Chinese Only."