A picture shows the two in an embrace with a large diamond ring on her left ring finger. The actor was married for nearly a decade to actress Anna Faris with whom he shares a son, 6-year-old Jack.
She is Arnold Schwarzenegger's eldest daughter and John F. Kennedy's grandniece.
Cape Town - Chris Pratt and Katherine Schwarzenegger are engaged!
Schwarzenegger later spent time with Pratt's brother Cully at the Round Pond Estate winery in Napa, California in early September.
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Billionaire businessman Peter Hargreaves, who pumped more than £3 million into the exit campaign, told Reuters: "I have totally given up".
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India vs Australia 2019 ODIs
With him being around, there's calmness around the group, it's also a bit of a help to the captain, he is like a guiding light . India will take on Australia in the first of the three-match ODI series on January 12 at the Sydney Cricket Ground.
Pratt and Faris settled their divorce in November and each waived their right to spousal support.
People reports that "since the summer", the pair "have been spotted riding bikes, going on multiple church dates together and hanging out with each other's families".
Pratt got engaged to Anna Faris in 2008, a year after meeting her on the set of Take Me Home Tonight. Both have retained their right to spousal support and will co-parent Jack.
Evidently, Pratt must really love her, as Arnie is surely right at the very top of the scary scale when it comes to fathers in law - even for the Star-Lord.