I discuss EVERYTHING with my little peeps and boy do we cover an array of topics. Is your youngest D close to her sisters? I only ask because I wonder if they ever discuss this.
I'm not sure if I'm understanding the exact question but if it is just *disposal* of feminine products. You could say "d, you can wrap the pad in the wrapper or some toilet tissue and place in the garbage can." If it's a tampon, those should be flushable. I apologize is anyone is offended by this-it is what it is.
Is there a more specific question or is that it? Can I make a suggestion? I'm sure this isn't the most relaxing or comfortable conversation to have... However, I think if you approach her from a relaxed manner and discuss disposal with her (just like you would say to throw away you sandwich wrapper)!she will feel as relaxed as a young teen can with her Dad on this topic.
3 kids BD 12/15/13 (IDKIILY. ) Rope dropped Cirque du Soleil style D final 9-9-14 "Some people are born on 3rd base and go through life thinking they hit a triple." Barry Switzer