Nina Debrov AKA Elena Gilbert in The Vampire Diaries Season 6 was one of the first to accept the Ice Bucket Challenge in just a sexy bikini! Nina threw off her shirt to reveal her hot body before being dumped by a bucket of ice water! “Challenge accepted. If you’re gonna go in , you gotta go ALLLLLLL in. #ALS,” Nina captioned her video. As soon as she completed the challenge, she jumped into the water!