Heather by Michelle Wong (Archive Link)
This fantastic 2011 bondage and chastity story by Michelle Wong tells about the lives of Heather and her assistant (and sub) Jennifer. Jennifer was initially a somewhat problematic employee and couldn’t really get the kinds of jobs her credentials should have got her, so at some point she decided to start with an assistant role, landing with Heather. But Heather had quite a different idea what she wanted to do with her new assistant, so since the two met, Heather always made sure she had as much control over Jennifer as possible. The problem was, just, Jennifer wasn’t a submissive. So when she finally has enough of Heathers punishments, she puts something into Heather’s food and begins switching the roles quite severely.