News Hilary Duff Flashes Cleavage in Sexy Bikini Selfie From Hawaii By Zach Seemayer 11:35 PM PST, January 3, 2016 Instagram Hilary Duff shared a look at her trip to Hawaii on Saturday, where she soaked up some fun in the sun in a low-cut swimsuit.While the 28-year-old Younger star made sure to shade her face with a big, floppy hat, she did flash some cleavage in a black-and-white close-up selfie she shared to Instagram. View this post on Instagram🐰🌸A post shared by Hilary Duff (@hilaryduff) on Jan 2, 2016 at 9:56am PSTWATCH: Hilary Duff Flaunts Major Cleavage in Bikini SelfieOn New Year's Day, Duff showed off her tan chest in a black swimsuit as she and her friend, actress Molly McQueen, shared some fruity beverages. This time it was McQueen's turn to sport killer headwear.WATCH: Is This the Hottest Hilary Duff Has Ever Looked?Duff looked even more radiant in a pic she posted on Dec. 30, showing off her flowery lei -- as well as her flawless face. View this post on Instagram✌🏻️haiii 🌸A post shared by Hilary Duff (@hilaryduff) on Dec 30, 2015 at 10:25pm PSTWATCH: Hilary Duff Is on Tinder! 'I'm Talking to Probably About 9 Guys Right Now'In September the mother-of-one took to Instagram to flaunt her phenomenal physique in a sexy black-and-white stripped bikini top while enjoying a beverage served inside a pineapple.Check out the video below for a look at Duff's super-sexy poolside pic.Hilary Duff Flaunts Major Cleavage In Bikini Selfie On Vacation Related GalleryHollywood's Hottest Bikini Bods!