Chris Pratt and Katherine Schwarzenegger Are Engaged

After months of not knowing what really was going on between Chris Pratt and Katherine Schwarzenegger, the Guardians of the Galaxy star has announced they're engaged!

Pratt, 39, and Schwarzenegger, 29, reportedly were set up back in June, when we started seeing them on the occasional outing together. Their romance started heating up throughout the summer, with Schwarzenegger even spending time with Pratt's son Jack, six, who the actor shares with ex-wife Anna Faris.

The Star-Lord actor took to Instagram early this morning to share the exciting news, complete with an adorable photo featuring the engagement ring. "Sweet Katherine, so happy you said yes!," Pratt begins in his caption.

Tons of fans and friends of the actor flocked to the comments section to send their congratulations. Fellow Marvel actor Tom Holland, who plays Peter Parker/Spider-Man, wrote, "Congrats bro," while Rosario Dawson, who plays Claire Temple in Netflix's Marvel series Luke Cage, wrote, "Amazing! Congratulations!!!"

Although the pair have only been dating for a few months, they appear ready for the long haul. “They’re both serious about the relationship and hopeful for the future,” a source recently told PEOPLE. “Chris doesn’t just date to date, and neither does Katherine. She’s very excited.”

Congratulations to the cute couple!