It could be that she was pressured in some way. For example, if the situation was affecting others and she was urged by those around her to tell what she knew. Also, it might be that she saw no other way out of a difficult situation. Say there was a misunderstanding in the family, and by sharing the story, she hoped to clear things up, even though she was reluctant at first.
One reason could be stress. If she has a lot on her plate at work or in her personal life, she may not be in the mood for sex. Another factor might be relationship issues. For example, if there have been recent arguments or a lack of emotional connection, it can lead to reluctance. Also, health problems, either physical or mental, could play a role. For instance, hormonal imbalances can affect a woman's libido.
Privacy is a big reason. A wife may feel that her stories are personal and not meant for public consumption. For example, if she had a difficult time in her past, she might not want others to know about it.
She might be an introvert. Introverts often feel drained in social situations like parties. They prefer quieter, more intimate settings and large parties with lots of strangers can be overwhelming for them.
She might be shy. Shyness can often make a person reluctant to engage fully at the start. Maybe she's not used to the situation or the people involved in the story.
One reason could be that she is not used to being the center of attention. She might be a very private person and having a photoshoot makes her feel exposed.
Another reason could be related to personal goals and independence. She may have her own career or personal development plans that she fears would be derailed by pregnancy. In a cuckold relationship, she might already be struggling to define her own identity and place, and pregnancy could seem like another factor that would limit her freedom and ability to pursue her own dreams.
One reason could be the lack of personal freedom. A woman might be used to having her own time to pursue hobbies, a career, or just relax. Having a child means sacrificing a lot of that time. Another reason is the financial aspect. Raising a child is expensive, from diapers to education. Also, the fear of the physical and emotional stress of pregnancy and childbirth can make a wife and mother reluctant.
Maybe the story is about a wife who is reluctant to take a crowded bus. She might be used to a more comfortable mode of transportation. For example, she usually travels by car but has to take the bus due to some unforeseen circumstances like her car is broken. And the crowded bus makes her feel uncomfortable and reluctant.
One reason could be fear of change. For example, if the husband wants to start a new business and the wife is reluctant because it means a big shift from their current stable life. Another reason might be personal preferences. Like if the husband likes to travel a lot but the wife is reluctant as she prefers the comfort of her home. Also, it could be due to past experiences. If she had a bad experience with something similar before, she would be reluctant to do it again.
In a relationship, the reluctant wife in a sex story might be so because she doesn't feel an emotional connection at that moment. Sex is not just physical but also emotional. If she feels that the emotional bond is lacking, she'll be reluctant. Additionally, cultural or religious beliefs can have an impact. If she has certain values instilled in her from her upbringing that conflict with sexual activities, she will show reluctance. There could also be health problems that she might be embarrassed to talk about, which make her reluctant to engage in sexual relations.