Article continues below advertisementNina Dobrev is living her best life as a single woman.The Vampire Diaries alum, 36, flaunted her lean physique in an array of cleavage-baring bikinis and tropical-inspired frocks in an Instagram video she posted on Monday, January 5.Dobrev spun and danced around her hotel room to Diana Ross' "Upside Down."Article continues below advertisementSource: @nina/InstagramNina Dobrev showed off her outfits on vacation.She sported a chevron two-piece, a strapless brown set with gold hardware and a pink, printed bikini.