Chris Pratt has made his relationship with Katherine Schwarzenegger Instagram official.
The 39-year-old actor has been romancing the author, the daughter of Hollywood icon Arnold Schwarzenegger, since June, and things seem to be going from strength to strength for the pair as the Hollywood hunk shared a touching tribute to his girlfriend on the social media app on her 29th birthday.
Chris admitted that he has "cherished" being with the brunette beauty and is "thankful" for the "love and care" she brings into his life.
Alongside an adorable collage containing fun pictures of the pair, including one of Chris planting a kiss on Katherine's cheek, he wrote: "Happy Birthday Chief! Your smile lights up the room. I've cherished our time together. Thrilled God put you in my life. Thankful for the laughs, kisses, talks, hikes, love and care. (sic)"