Chris Pratt 'thrilled to be marrying' Katherine Schwarzenegger

Chris Pratt has announced his engagement to his girlfriend Katherine Schwarzenegger after seven months of dating.

The Hollywood star took to Instagram to say how “thrilled” he is to be marrying the author, posting a picture of them embracing which showed off her diamond engagement ring.

He wrote in the caption: “Sweet Katherine, so happy you said yes! I’m thrilled to be marrying you. Proud to live boldly in faith with you. Here we go!”

The 39-year-old Guardians of the Galaxy star confirmed his romance with the 29-year-old writer in December.

Schwarzengger, who is the eldest daughter of actor-turned-politician Arnold Schwarzenegger and broadcast journalist Maria Shriver, started dating last year after Pratt split from his wife, Anna Faris.

Pratt announced he was splitting from Faris, his wife of almost eight years, in August 2017.

Their divorce was finalised in October last year. The couple have a six-year-old son, Jack.