1: Chris Pratt celebrates National Siblings Day with touching photos of Cully and Angie.

2: The actor shares heartfelt message declaring his love for both siblings.

3: Cully and Angie Pratt receive sweet shoutout from famous brother on special day.

4: Fans gush over adorable family photos shared by Chris Pratt.

5: National Siblings Day brings out the love between Chris Pratt and his siblings.

6: Chris Pratt's Instagram post honors his beloved brother and sister.

7: Sibling love shines through in Chris Pratt's National Siblings Day tribute.

8: Chris Pratt's heartfelt message to Cully and Angie Pratt melts hearts online.

9: Brotherly love: Chris Pratt expresses gratitude for siblings on National Siblings Day.

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