Your sister has been in a very moody mood lately...I think you've heard that she's started having "red days". You've been wondering what that is and how the process works. You asked your sister to show you how she wears pads. Your sister thought it was very funny and she let you watch her go to the toilet: first you have to choose the size and thickness of the pad, today you don't need a pad that is too big and thick, she chooses a long and ultra pad then you have to carefully glue the pad on the panties, it is better to make sure that the wings are smooth and evenly glued when the pad is glued to the panties, you have to iron it with your hand, so that it adheres better to the fabric oh! you can also rub it with your pussy and the pad, it's not necessary, but your sister likes it for sure! before putting on a clean pad, you have to pee, your sister thought why hide it if you are already watching the whole process, especially it's fun hehehe