I don't normally do this, but I have been lurking a while, and I have had many opporunities to add input to peoples stories, but I held off as to not mess with a writers vision. However, I saw that you were asking for requests on the new chapter of your story, and I can't contain myself. I don't expect you to follow my suggestion, and if it is outside your vision for the story, please keep doing what your doing. so here it goes:

I would like to see a gentle relationship between the sister and brother, after she somehow finds out about his foot fetish. It would be pretty fresh to see a playful, teasing and accepting relationship between them, where the sister will tease, but ultimately embrace her brothers like of feet, and allows him to induldge in it with her. I could see it being either a secret they have from their mother, or an open thing where she might also know and have a more motherly take on the situation, like with no teasing, but instead a maternal thing going on? and I don't know how the aunt would factor in, possibly as a contrasting character, where she would not like it or be more sadistic, but still friendly, sorta break up what is going on with the sister and maybe mother.

Anyway, thanks for even reading my ridiculous review. I admit it got away from... I only planned on bringing up the possibilities with the sister, but I kept expanding and expanding as I wrote the review. I can't wait to see what your story has in store, and by all means, don't let my suggestion interfere with what you are doing. I actually like how it is going so far! :D