One theme could be empathy. When the husband becomes the wife, he gets to experience what she goes through daily, which helps him understand her better. This can strengthen their relationship as he now has a more empathetic view towards her.
One possible theme could be love and sacrifice. The healthy spouse might sacrifice their time, energy, and resources to take care of the one with heart block.
It could be a love story about how they first met. For example, she might recall the moment she saw him across the room and how her heart skipped a beat.
If we assume it's a story about relationships, possible themes could be power dynamics within a marriage. Since the idea of 'pegging' implies a certain role - reversal or non - traditional dynamic, it could also touch on themes of equality and respect in a relationship.
One possible theme could be self - discovery. The pettie wife is on a journey to understand a new aspect of herself that she wasn't aware of before.
Gender roles and expectations are also a major theme. By having the sissy husband become a 'wife', the stories question the traditional ideas of what it means to be a man or a woman in a relationship. It shows that roles can be fluid and that there are many ways to contribute to a relationship regardless of gender.
One reason could be a change in lifestyle. For example, if she has a new job that is more sedentary and she doesn't have as much time to exercise. Another reason might be emotional eating. Maybe she went through a tough time like the loss of a loved one or a difficult period at work and turned to food for comfort.
Jealousy could be one reason. If the wife feels that the husband is getting more attention in some way, she might try to humiliate him to bring him down a peg. For instance, if he has a lot of female colleagues at work and she's insecure, she may start humiliating him at home.
One reason could be for fun. Couples often engage in silly physical stunts just to have a good laugh together. Another reason might be as part of a fitness or strength - building activity. They could be testing their physical limits and seeing what they are capable of. Also, it could be in the context of a friendly competition among friends or family members.
One reason could be that the wife has a stronger personality. For example, if she is a natural leader in her career or social life, she may carry that over into her marriage and tend to dominate decisions. Another reason might be that the husband is more laid - back and doesn't mind his wife taking the lead.
In some made - up scenarios, if the husband is extremely lazy and refuses to contribute to household chores or family responsibilities, the wife could get so frustrated that she resorts to caning him. For example, if he just sits around all day while she has to work, take care of the kids and do all the housework. It's a way of showing her extreme dissatisfaction in a very dramatized way.