There is something highly erotic about watching or catching her masturbate. While she is open about sex and her desires, she is very reserved about masturbation. The first time I ever got to watch her self pleasure herself, was after we had been married roughly 26 years. We played a game of Truth or Dare with four other lifestyle couples and my wife's dare was to use a dildo to get herself off in the middle of the group. It was a slow start but eventually, she began to enjoy it and her climax was incredible.