https://www.loubealysfetisherotica.com/2019/08/his-change-of-perspective.html
Professor Felix and his assistant Nadia are archaeologists that come into possession of an artifact that can transform people’s bodies. She accidentally changes him to be more feminine, but soon changes him all the way. This is only the beginning of the changes she forces on him. They engage in some hot lesbian sex, before he is made to be her servant. She also alters his mind so he is a foul mouthed bimbo.
Source: reddit.com/r/Erotica/comments/clng23/his_change_of_perspective_gender_swap_mind