Miley Cyrus  got very friendly with her close pal and personal assistant, Cheyne Thomas, when the two hit up a hotel pool in Barcelona on Thursday. The "Wrecking Ball" singer, who is traveling around Europe on her Bangerz tour, donned a red string bikini and danced around the pool area while partying with a group of friends. At one point, Miley and Cheyne were seen sharing what looks like a kiss, but it might have just been a spur-of-the-moment smooch, as Miley and her party were clearly in a fun mood. Besides, Miley and Cheyne clearly have a very close relationship — the songstress famously raised eyebrows when she grinded against a Santa-suit-wearing Cheyne  at a Jingle Ball concert last year. Back in 2012, one of Miley's pool trips with Cheyne sparked rumors that she was cheating on then-fiancé Liam Hemsworth. Miley was forced to defend herself on Twitter , writing, "So now because I am engaged I can't have a friend of the opposite sex? Can't have a friend help me out while I'm working alllll day? #dumb."