Earlier in the week, she shared funny photos of her youngest son Tennessee hanging upside down around the house as he went back to school online.But on Thursday, Reese Witherspoon shared a more touching snap of the seven-year-old as he posed for a picture with his older half-sister Ava Phillippe, 20.'My September babies,' the Hollywood star, 44, wrote in the caption on Instagram. 'My September babies': Reese Witherspoon shared a touching snap to Instagram Thursday of seven-year-old son Tennessee and daughter Ava, 20, seated on an outdoor sofa togetherIn the photo, Tennessee, whose father is Reese's second husband Jim Toth, sits cross-legged on an outdoor sofa.He's wearing a red shirt and blue shorts.
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