Tallulah Willis shared a photo of herself hanging in the pool with her sister Scout and their mom, Demi Moore. The snap, which Tallulah posted on Father's Day with the caption, "When you can't be with the papa. . . #mymomsbodtho," shows the 52-year-old posing in a printed two-piece and basically looking half her age. Though oldest daughter Rumer was missing from the fun, we did get to see her and Demi twinning it up in a social media photo just last month; they stood side by side wearing matching glasses and jumpsuits on Memorial Day. Check out Demi's banging bikini body, then see more stars in sexy swimwear here.