Porn star Stormy Daniels fired back at President Trump for nicknaming her “Horseface,” questioning whether the president has a “penchant for bestiality.”

The president began the war of words Tuesday morning, raging against the woman who claims she had a tryst with Trump after he married first lady Melania Trump.

In a tweet responding directly to the president, Daniels gave Trump his own nickname. “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 wrote.

[More: Michael Avenatti claps back at 'disgusting misogynist' Trump after 'Horseface' tweet]

The mudslinging came a day after a federal judge in California threw out the porn star’s defamation lawsuit against the president.

U.S. District Judge James Otero ruled that the president was protected by the First Amendment when he refereed to a forensic sketch of a man who Daniels says threatened her to stay quiet about her alleged affair with Trump as a “total con job.”

Daniels’ lawyer, Michael Avenatti, has appealed the decision. She still has a lawsuit pending against Trump and his former longtime lawyer Michael Cohen over a nondisclosure agreement.