This billionaire’s new book has some ‘prime’ time presidential debauchery.

Jeff Bezos’ billionaire ex MacKenzie Scott has dropped her first post-divorce novel, creating a dystopian nightmare ruled by two leaders — “President priss,” who fantasizes about getting “serviced” in the White House and a sex-crazed South African surgeon.

“Last Days in Two Nations (A History in Eighteen Minds)” is the third tome for Scott, 56 — who got $38 billion in Amazon stock after her split with Bezos in 2019 and is now one of the top donors to radical lefty causes.

She began serializing and self-publishing the book August 8 on Substack, releasing it in dense daily installments. Subscribers can read all 320 pages of it for free – so long as they don’t mind the delivery method.

The book assembles multiple perspectives on a fascist partial takeover of the US — while shoehorning her left wing social commentary at every turn.

The tale is partly set in disputed territory called the Dakota Membership in a fictional two-state clash between the “Still United” States and the western stronghold in the Dakotas.

It features a sex-crazed President Damian Paxton in Rapid City who had a taste for “t..ts and Taps, pomp and debauchery” and who manages to bed 21 women a week.

The South Africa-raised “hotshot surgeon” is one of two rival presidents whose sex romps get mentioned in the book.

“Last night I had three different women in my bed. And that happens to me every night of the week. You can stop asking me how I am in the morning,” he quips.

He is also a keen collector of fish and always on guard for KHV — koi herpes virus.

The other leader is an unnamed daydreamer she called “President priss.”

“President priss could probably see him right out the window of her Lincoln bedroom or whatever, big four-poster posts pointing up to God like her toes when her First Man secret serviced her, and her sons up all night talking smack on some smackchat, and what was she doing about it?”

Another hard-to-untangle section deals with a character named Jonah who is traveling to the breakaway territory with a rat in a “biodegradable carrier” – apparently as a way to evade land mines at the border.

At one point he takes a cell phone call from his prying sister, who he compares to a beagle or the “Stasi,” the infamous East German secret police.

On the television in his room there is a “troupe of dancing nurses in sexy Santa dresses.”

The installments already drew 6,000 subscribers after five excerpts. The cover page says it will run 80,000 words, which leaves plenty of room for more hijinks.

Scott is worth $38 billion, which may help facilitate unlimited creative license with her copy. It is a craft she studied at Princeton, where she studied with acclaimed novelist Toni Morrison, who wrote a blurb for her first book.

Her first two works of fiction are for sale on Amazon. One, “The Testing of Luther Albright: A Novel,” deals with California man who struggles through family problems after an earthquake hits his Sacramento home.

Her second work, called “Traps,” deals with a movie star on a road trip to Las Vegas.

She has spent considerable effort giving her fortune away, in contributions that made their way to Israel hating charities like American Muslims for Palestine (AMP), Students for Justice in Palestine, and the Palestinian Community Network.

The author sold 75% of the Amazon stock she got in her divorce from Bezos and has donated $26 billion to date.

With no worries about profits or book sales, she hasn’t done any PR or interviews for the project. Her agent didn’t respond to a request for comment.

Amazon has kvelled about her “taut prose” and “tough characters.”

But some wordsmiths weren’t impressed.

“As a lawyer come novelist, I am never keen on criticizing any author’s writing journey,” said “Tuxedo Park” author Thomas Kenniff.

“However, after perusing some of  Ms. Scott’s rather colorful prose, I wonder if she might do better devoting her time, and substantial resources, to something  more purposeful,” he told The Post.