I have enjoyed bondage both as a top and a bottom but I have never approached anything as radical as described here. Parts of it seem to be too radical for real life, judging from my personal experience, but it is still an exceptionally arousing story.
I found the mother/daughter, incest, aspect of it especially interesting. All young men fantasize about having sex with their mother when they first become aware of their sexuality sexual and I certainly fantasized about her to being a "dommy mommy". I never had the nerve to discuss it with her.
Keep up the good work!
Coinflipper