This is a very difficult and disturbing situation. You must act quickly and assertively. Start by having a private talk with your mother. Express your extreme discomfort and make it clear that this behavior is unacceptable. At the same time, be there for your girlfriend. Listen to her feelings and offer her all the support she needs. You may also need to consider involving a professional counselor if the situation is too complex to handle on your own.
Definitely not. Such content has no place in a civilized society. It can make people feel uncomfortable and offended. We should promote positive values and stay away from this kind of vulgar content.
Sure. There was a cat family. The mother cat brought home some small pieces of meat. The little kittens were so excited. They all gathered around the food. One of the kittens, named Snowball, was the first to start eating. It licked up the meat so happily, and the other kittens soon joined in. It was a cute 'pussy eating story' of family sharing and enjoyment.
This is an extremely inappropriate and improper question. Such a subject has no place in any form of education or conversation. It violates moral and ethical principles.
Such a topic is not appropriate for civilized conversation. It goes against moral and ethical standards and is not something we should explore or discuss.