Julianne Hough and Ian Somerhalder helped Nina Dobrev celebrate her birthday after the People's Choice Awards.
The 'Vampire Diaries' star turned 25 on Thursday (09.01.14) and her best pal and ex-boyfriend surprised her with a special cake shortly after midnight, just hours after they attended the glitzy awards ceremony in Los Angeles on Wednesday night (08.01.14).
'Safe Haven' star Julianne, 25, posted photographs from their cosy party on her Instagram site and a touching message about how much Nina means to her.
She wrote: "Happy Birthday my beautiful @ninadobrev. You are kind, smart, adventurous, loving, honest, beautiful, mysterious, free, funny, and so on and so forth..... I am so lucky to call you my best friend! I love you so much... My sister!"
'Vampire Diaries' writer and executive producer, Kevin Williamson, also tweeted a picture of the surprised brunette actress holding the cake as Ian and Julianne hugged her from behind.
The group were also celebrating after Nina and her co-star Ian, who called off their three-year romance in May, picked up the prize for Best Chemistry at the awards, where they poked fun at their break-up.
The exes - who are constantly subject to rumours about getting back together - were visibly on very good terms during the ceremony.
Taking the stage to accept their award, Ian enthused: "Wow, this is crazy! Can you believe this is almost five years in the making?"
The 25-year-old brunette joked: "You're right, yeah! But you know what's funny, Ian, is that at the beginning of the show, Elena actually hated Damon."
Ian retorted, "You were hooking up with my brother!", referring to Elena's long-term relationship with Damon's brother Stefan (Paul Wesley), on the show.
There was no certainly no sign of bad blood between the pair, who played up to the audience's cheers by pretending to feel uncomfortable around each other as they referenced their real-life break-up.
Nina continued, "Then we broke up in real life," with Ian chiming in, "And yet our characters are still dating on the show", before she replied, "It's a good thing it's not awkward..."
The 'Lost' hunk then spontaneously planted a smooch on Nina's cheek as she giggled, "Well, it's a good thing we have chemistry!"
Ian also shared a special birthday message for Nina on Twitter, which she later retweeted.
He wrote: "Happy Birthday @ninadobrev!!! The world loves you! We all do. Enjoy the moment, enjoy the day, enjoy the year!"
Disappointingly for fans of the show, Nina, who also briefly dated Julianne's brother Derek Hough last year, was spotted holding hands with a mystery man as she arrived on the red carpet before the ceremony.