These are stories with a premise I have not seen elsewhere. Self-bondage -- the practice of tying oneself up -- is a frequent theme in stories written by and for bondage fans, especially those who practice, or fantasize, about self-bondage themselves. In the first two of these stories, what Susan does has to qualify as self-bondage but, in a sense, it is out of her control. You'll have to read them to see what I mean.
The three stories here are really, in the end, a single continuous story. They should be read in order, first to last ("Suzy," then "Suzy Returns," finishing with "Suzy and Quinn"). Otherwise you will run into things that don't make sense.
Kinks in the first two stories consist solely of self-bondage and female nudity. In "Suzy and Quinn," in addition to the bondage and nudity there is some girl-girl sensuality and sex. (It's not Susan having sex, if you are wondering.) And the themes of sado-masochism and domination/submission arise. "Suzy and Quinn" also puts an ending on the series. As in the other stories, Susan spends plenty of time in bondage.
Each of the stories can be viewed in two ways: