"I Will Fear No Evil" by Robert A. Heinlein

Heinlein's 1970 exploration of the psychology of Transgenderism.

This is Sr.

Seriously folks. That is essentially what this is. AND it was the first Robert A. Heinlein book I read. If books were going to make you trans. I would straight-up be wearing a dress. But Kilts (Which I can rock with GREAT dignity) aside, It just didn't happen.

About a super-rich old codger who has his brain transplanted into the dead body of his twenty-something Sex-pot secretary and ends up having a gay(?) affair with his lawyer.

Just read it. It is frighteningly prophetic in terms of many attributes of our society.