Heres a simple ab workout that bikini model Heather is doing at the beach. Shes doing some rotating planks and leg raise exercises. Give it a try.br Sexy Bikini Model does intense abdominal workout on the beach to get a sexy bikini stomach and a strong core. Watch as she does crunches, sit ups, and leg .br Want Sexy Six-Pack Bikini Abs?Or a Sexy flat stomach? Or a strong core? Or a sexy slim waist? Give this intense abs workout a try! Model Coryn Salazar: .br If you want sexy bikini abs then give these exercises a try. Some of these ab exercises are easy and some are very hard. Give them a try and see how you do.