From the submitter:
The translation was supposed to be "2 sisters taking selfies" but apparently the word used for "taking selfies" is the same for "masturbating." It must make certain conversations awkward in Vietnam...
Note from the mod:
The original submitter of this image did us a solid and didn't bother to add in any of the context that would make this pissing contest of an argument make any sense. With all that said, feel free to hash it out in the comments section with all of your pre-ascribed beliefs and assumptions. That's the key to great discourse!