Chris Pratt melts our hearts with this incredibly sweet Instagram post

Chris Pratt has officially melted our hearts by way of Instagram. Proving himself to be the sweetest dad and husband with his latest post, the 36-year-old shared a snap of his three-year-old, Jack, and captioned the photo with a heartfelt message about his son and wife Anna Faris.

After Jack spotted a rainbow reflected on the wall of their home, the Guardians of the Galaxy actor couldn't help but turn it into a game, and shared a photo of his son smiling next to it.

TAP TO VIEW GALLERY Chris compared Jack to his wife, Anna

He wrote: "This morning Jack found a rainbow on the wall. I honestly couldn't figure out where it was coming from which according to science means it's some sort of portal. You ever see Stargate? Exactly. We were careful not to get too close."

He continued with an adorable message about his family, writing: "I snapped this photo and it dawned on me how much Jack looks like Anna. They are both so beautiful. Sleeping in with the two of them is my greatest treasure."

Fans were quick to gush over the photo, with one fan writing: "So cute he does look just like his mom," while another wrote: "this is so cute, I'm so happy you and Anna found each other and created what must be another amazing, talented human being. You rock, Chris."

Chris regularly shares photos of Jack

Just last week the actor shared another picture of Jack during a fishing trip, writing: "This little dude is bass fishing crazy. Just like his daddy!"

Anna has previously spoken about her husband, telling Redbook that he finds fatherhood "meaningful."

She said: "I think that being a father is very meaningful and rewarding to Chris. He's a great dad. He's a little more serious than he was before. It forces your hand. You really have to become an adult."

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