12. Victorias Secret and Sports Illustrated swimsuit issue model Nina Agdal also has a few tips for you. The Danish fashion bombshell reveals that her amazing bikini body is achieved by working out regularly. She says there is not much to say- its all sweat and tears! She does 30 minutes of intense cardio followed by lifting weights. Nina also admits hitting the gym 3 or 4 times a week, so if you like her body, follow her exercise plan.