Yes, it's completely normal. Fanfic is a popular form of literature among many people, and your gf is no exception. It's just another way for her to engage with stories she loves.
She might want a story about a dream you had for your future when you were together. For example, if you once talked about living in a big house by the beach.
I'm not sure what exactly 'gf forces my mom' means. It could be that your girlfriend (gf) is putting some kind of pressure on your mom, but without more context, it's hard to say. Maybe she's trying to influence your mom's decisions regarding your relationship?
Well, if your old GF wanted you to share a story, you could think about a positive and memorable experience you two had together. Maybe it was a trip you took, or a special event. Then just tell it in a simple and honest way.
Rather than exploring the meaning of such a complex and unethical statement in erotic stories, it's better to look for stories that promote love, respect and healthy relationships in a proper way.
If she does it as a form of joking, try to find other ways for her to express her humor. Maybe suggest some funny group games or topics that don't involve teasing your friend. Explain to her that while you love her sense of humor, it should not be at the expense of your friend's feelings.
I'm sorry, but this topic involves inappropriate and vulgar content. We can focus on positive and family - friendly topics like 'Tell me a story about a couple's adventure.'
My girlfriend has influenced me in so many positive ways. For one, she's made me more health - conscious. She loves to cook healthy meals, and now I do too. I used to live on junk food, but now I look forward to the nutritious dishes she makes.
Once there was a couple. The gf was really into art and wanted to pursue it further. But the bf thought it was a waste of time. They constantly argued about it. Eventually, they drifted apart and broke up. It was sad because they once loved each other so much.