Reese Witherspoon has shared a brilliantly silly video of herself blowing the camera a raspberry in slow motion.The mom of three shared that the video was also sent to her children, captioning the post: "Important videos I send to my kids...Happy Friday!"Friends such as Diane Keaton were quick to comment with the cry-laughing and heart emojis, while country superstar Kelsea Ballerini added: "Hahaha I adore you."MORE: Reese Witherspoon shows off super toned figure in her home gymA post shared by