A pure girl

I had thought that women knew some knowledge about a little X-rated words until Shall asked me about such words. I also asked her whether she really did know or not. She said, 'No' and the answer surprised me. In my opinion, women who are over 16 years old learned such words by their friends or media(TV, magazines, comics etc), but it was destroyed by her word.
I was unable to make a decision to tell her. She said, 'I follow your directions.'.
Is it good for her to know these?
Finally, I told one of them to her. It was a little abnormal, however, easy to explain what it was to her.
She was very embarrassed to hear that.^^;
She felt some regrets.--;
If she is confused or in trouble now, I want to support her fully. I have a duty and responsibility to do so because I have told her the word.