A number of Jess's famous friends - including Gigi Gorgeous - flooded the comment section to send the happy couple their congratulations.
Kai proposed to Jess in Joshua Tree, California, taking to Instagram to express his love for his future wife.
"She said “yes” and I’m the happiest mf alive," Kai wrote on social media. "@jessicaveronica here’s to a lifetime of love and memories. Thanks for being in my life ❤️"
Kai and Jess have been dating for one year, with the couple first making their relationship public when they were snapped kissing for the cameras at LA pride weekend in West Hollywood, earlier this year.
Congratulations you two!