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Sisters in the sun! <\/span>Rumer Willis<\/a> is sharing pics from a fun pool day with her best girls, donning matching pink swimwear for the occasion.\u00a0<\/span><\/p>\n “On Wednesdays We Wear Pink \ud83c\udf38 feat. the littlest Willis,” Rumer, 35, wrote in her <\/span>Mean Girls<\/span><\/em>-inspired caption. The carousel of photos include shots of sisters Tallulah Willis, 30, and Scout Willis, 32, along with Rumer’s one-year-old daughter, Louetta.<\/span><\/p>\n Rumer showed off her curves in a high-cut one-piece suit, wiggling her hips and shoulders in one video. Tallulah and Scout both opted for coordinating two-piece options in the same bubblegum color and flattering crinkled fabric.\u00a0Louetta also got in on the fun in a sweet ruffled tutu bikini.\u00a0<\/span><\/p>\n The post comes days after Rumer <\/span>celebrated her daughter’s first birthday<\/a>. Louetta, whom the actress shares with boyfriend\u00a0<\/span>Derek Richard Thomas<\/a>, is the first and only grandchild of\u00a0<\/span>Demi Moore<\/a>\u00a0and\u00a0<\/span>Bruce Willis.<\/a><\/p>\n In addition to his three eldest daughters, Bruce also shares\u00a0daughters Mabel, 12, and Evelyn, 9, with his second wife,\u00a0<\/span>Emma Heming Willis<\/a>.\u00a0<\/span><\/p>\n Bruce is currently battling\u00a0<\/span>frontotemporal dementia<\/a>, which has caused his health to decline and for the 69-year-old actor to step out of the public eye.<\/span><\/p>\n Last week, a special 30th anniversary screening of\u00a0<\/span>Pulp Fiction<\/span><\/em>\u00a0was held as part of the opening night festivities for this year’s TCM Classic Film Festival in Hollywood, and Emma and Tallulah\u00a0<\/span>attended the event in his honor<\/a>.<\/span><\/p>\n