Young people need to be prepared for adulthood so that they are ready to use their genitals properly and safely. Madame shows them the technique of intercourse, teaches them how to suck and swallow and demonstrates by personal example how to get an orgasm. The young men really liked the lesson - they absorb all the knowledge with genuine interest. The adult woman seems quite happy with the result. I have no doubt they will repeat the lesson on their own!
If your wife gave in the ass, her sex life will now be enriched not only with you. Feeling herself at least once a bitch - a woman will want more adventures. By the way, a lot of husbands want this very thing from his wife. Definitely will not be bored!