Bethenny Frankel, 51, displays her impressively taut abs as she flashes Skinnygirl underwear

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Bethenny Frankel put her impressively taut abs on full display as she gave her 2.4 million Instagram viewers a peek at her underwear on Thursday.The 51-year-old Real Housewives Of New York City alum took to her Instagram Story to flash her underwear, which was made by her brand SkinnyGirl.'Nothing gets between me and my @skinnygirlbrand,' Bethenny captioned the photo in a cheeky play on the famous Calvin Klein slogan.

Baring some skin: Bethenny Frankel put her impressively taut abs on full display as she gave her 2.4 million Instagram viewers a peek at her underwear The top of the entrepreneur's toned thigh was visible in the image, in which she modeled a white pair of bikini underwear with 'Skinnygirl' stamped in black across the band.

Bethenny also seen modeling additional Skinnygirl shapewear, including a tank top which she said had received a lot of comments.She said people love the top because it's 'a classic' and a 'good layering piece'.

Brand endorsement: On Thursday, the 51-year-old Real Housewives of New York City alum took to her Instagram Story to flash her underwear, which was by her own brand SkinnyGirl Shapely:Bethenny also seen modeling Skinnygirl shapewear, including a tank top which she said had received a lot of comments Easy access: She flashed her dusty mauve bra as she pulled down her top to demonstrate its accessibilityBethenny added that the top provides easy access for 'people who are breastfeeding' or 'who have had surgery.'She flashed her dusty mauve bra as she pulled down her top to demonstrate its accessibility.'This is a solution tank,' Bethenny said in the videos, adding an GIF of a lightbulb with the wording, 'Be the solution.' 'I'm just good at these silently sexy moments': The reality.