DONALD Trump and Stormy Daniels have laid into each other in a shockingly personal Twitter spat after he branded her “Horseface”.

The ex-porn star quickly bit back, saying in that case he must be into “bestiality” and calling him “Tiny” in a jibe about the size of his todger.

Daniels – who has stuck to her story that she and Trump had an affair – has previously compared Trump’s penis to a small mushroom.

The spat came after her defamation lawsuit against the US president was thrown out.

Less than 24 hours after the judge’s decision, Trump tweeted: “Federal Judge throws out Stormy Danials (sic) lawsuit versus Trump.

“Trump is entitled to full legal fees. @FoxNews Great, now I can go after Horseface and her 3rd rate lawyer in the Great State of Texas.”

“She will confirm the letter she signed! She knows nothing about me, a total con!”

Daniels hit back: “Ladies and Gentlemen, may I present your president.

“In addition to his…umm…shortcomings, he has demonstrated his incompetence, hatred of women and lack of self control on Twitter AGAIN!

“And perhaps a penchant for bestiality. Game on, Tiny.”

She followed up with a second tweet an hour later, in which she insulted the president’s grammar mistakes and reading speed.

Daniels wrote: “I see someone finally made it to chapter 3.

“Also, can someone please teach Tiny about correct punctuation?

“We already knew you’re a con, though. #triggeredhim #slowreader #commasarehard.”

The adult film star sued Trump after he said a composite sketch of a man she claimed threatened her to keep quiet about their alleged affair was a “total con job.”

In California on Monday US District Judge S. James Otero said Trump’s statement was protected speech under the First Amendment.

A judgement released in the California court stated: “The Court agrees with Mr Trump’s argument because the tweet in question constitutes ‘rhetorical hyperbole’ normally associated with politics and public discourse in the United States.”

The judge also ordered Ms Daniels to pay for all the legal fees, which is yet to be determined.

Michael Avenatti, her lawyer and an outspoken critic of the US president, branded him a “disgusting misogynist”.

He tweeted: “You are a disgusting misogynist and an embarrassment to the United States.

“Bring everything you have, because we are going to demonstrate to the world what a complete shyster and liar you are.

“How many other women did you cheat on your wife with while you had a baby at home?”

Daniels claims she had a sexual relationship with Trump in 2006, which is detailed in her book Full Disclosure that was recently released.

Daniels, who in August pulled out of an appearance on Celebrity Big Brother following a row with producers, alleges she was paid to remain silent over claims of an affair with Mr Trump.

Trump denies he had an affair but acknowledged reimbursing his lawyer for a £98,000 ($130,000) payment made to Daniels.