For Nina Dobrev, hanging out on a yacht entails sunbathing, Jet Ski rides, and of course, flaunting her sexy physique. The stunning Vampire Diaries star donned a black bikini for her fun on the open sea with Alexander Ludwig and other pals in Ibiza, Spain, on Friday. Although Nina and Alexander are reportedly friends, the Hunger Games actor appeared to have his eyes on her as she walked around the deck. The attention is nothing new for Nina. Ever since her ex Ian Somerhalder has been linked to Nikki Reed, Nina has been the subject of a plethora of romance rumors. In fact, Nina herself has poked fun at her supposed dating life, getting cheeky on Instagram and with Kellan Lutz at the Teen Choice Awards. Keep reading to see her and Alexander's latest snaps!