It's not okay at all. In most societies, there are clear norms about appropriate relationships. This kind of situation goes against the trust and respect that should exist in a relationship with a girlfriend, and it can lead to a breakdown of multiple relationships and a lot of emotional pain.
Well, my girlfriend's mom is an artist. When I first met her, she was in the middle of painting a beautiful landscape in their backyard. She showed me some of her works and told me how art has been a big part of her life. She also encouraged me to find something I'm passionate about just like she did with art. It was inspiring to talk to her.
Rather than exploring this improper - sounding story, we can turn our attention to heartwarming family - friendly stories that promote positive values.
No, it is not appropriate at all. Writing or engaging with erotic stories about a girlfriend's mom is unethical and violates basic moral and social norms. It can cause discomfort, harm relationships, and is disrespectful to others.
There was this one time when my girlfriend's mom took us on a road trip. Along the way, she told us stories about her own youth and the adventures she had. It was really fun to listen to her tales and see the places she had once visited.
The most memorable one was when my girlfriend's mom surprised us with tickets to a concert of our favorite band. She knew how much we loved that band and she managed to get those tickets somehow. It was an amazing night, and it showed how much she cared about our interests.
One story could be when my girlfriend's mom made a big family dinner. She prepared all of our favorite dishes. It was a warm and cozy evening filled with laughter and great food. We all sat around the table, sharing stories from our day. It really made me feel like part of the family.