I have several series available and will only link the first volume of each here. If you have KU all are free, otherwise they are all available to buy.
Temptation Control – Full series novel [mind control][voyeur][exhibition][lesbian][mff]
[https://www.amazon.com/dp/B07VR27KRN](https://www.amazon.com/dp/B07VR27KRN)
Becoming My Daddy – Volumes 1-4 are all live with 5 and 6 coming soon [barely legal][babysitter][bdsm][voyeur]
[https://www.amazon.com/dp/B07VQ45CTF](https://www.amazon.com/dp/B07VQ45CTF)
Dynami Society – Volumes 1-3 are live (3 launches today) and 4-6 are coming soon. [incest][bdsm][group][menage][mfff]
[https://www.amazon.com/dp/B07W81KB5L](https://www.amazon.com/dp/B07W81KB5L)
Source: reddit.com/r/Erotica/comments/cugj1i/several_series_and_titles_free_on_ku_mind
There is also a short story collection for anyone who likes some really naughty first time virgin taboo stories…
[https://www.amazon.com/dp/B07WQ1W1FQ](https://www.amazon.com/dp/B07WQ1W1FQ)