I must add that when a Chinese WL is sufficiently aroused with your little brother inside her she may be more susceptible for some heavy passionate kissing.A regular Chinese ML whom I've been seeing for 2 years doesn't do DFK. I don't think DFK is a thing among the Chinese MLs as I find they don't seem to open to it. I could kiss them but they always keep their mouths closed. But I may be wrong.
I had DFK with a Japanese, a Thai and a ML from South Asia.
Don't believe some who say NO Kissing at the beginning. It's up to you to work your magic on them.