Demi Moore celebrated her daughter Scout Willis’s 33rd birthday over the weekend by wearing a small white bikini at a river-themed party. Demi looked stunning, showing off her toned abs, slender legs, and fit figure during the poolside gathering.Joining the celebration were Scout’s sisters, Tallulah Willis and Rumer Willis, along with Rumer’s 1-year-old daughter, Louetta Isley. Demi was seen playing with Louetta, who wore a pink one-piece and a white sunhat.Fans React to Demi Moore’s ‘Hot Grandma’ EraFans were quick to praise Demi’s impressive physique. “How the F… Does anyone have a Grandma like Demi Moore?! I die!” one fan exclaimed. Another added, “You girls are so beautiful and sweet, I’m glad you guys had a great time.”