It must be nice that she can "fall asleep" while going through that process because I'll have trouble getting to sleep for the same thing.
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The juicy stuff doesn't happen until about the 2:20 mark, but the expositional stuff helps understand why there's so much there.
Apparently this woman has a cyst above the rest of the pus that has to be extracted and with all the crap that came out of there, how could you not be surprised at all of that gunk?
How anyone can be so relaxed during a procedure like that is amazing. My skin crawls just thinking about it.