Showing sexually explicit images is appropriate where necessary to answer the question. That is consistent with Quora TOS. A question about labia minora should allow photos of labia minora.

That said, my male friend pointed out that showing full body nudes was potentially unnecessary. But then my female friend disagreed bc the point was to show many hot women in porn actually do have large labia minora. My memory is that post got more upvotes than any other answer to that question, and all comments were positive.