Could Derek Hough be back with his ex-girlfriend, Nina Dobrev?

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As rumors continued to swirl, as they have for months, regarding Hough's relationship with his Dancing With the Stars partner, Bethany Mota, a new report has surfaced, claiming the dancing pro may have gotten back together with actress Dobrev.

"He took her and grabbed her and started dancing with her, basically throwing her around and she loved it," a source reportedly told Hollywood Life, according to a Breathe Cast report. "They were talking close and holding each other and she was laughing at everything he said, she was enamored and definitely was equally flirting with him and he was really trying to impress her."

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According to the report, Hough and Dobrev, who is a close friend of Hough's sister, Julianne, have been seen together at several parties as of late, including a Halloween party in Los Angeles and another at the Roosevelt Hotel in September.

While Hough and Dobrev may be spending time together, a second report on Nov. 18 gave an update to the rumor, claiming Dobrev is actually dating another man, Mark Foster, of the band Foster The People. According to a Celebrity Dirty Laundry source, Dobrev and Foster have been dating for "several weeks."

Meanwhile, the rumors about Hough dating Mota continue to make headlines, despite the pair having been mum for the last two months. Because the pair spend so much time together on set, and have such an amazing connection on the dance floor, many fans are convinced there is something between them.

Hough and Mota will be seen in Monday night's Dancing With the Stars two-part finale event, which begins this Monday night at 8 p.m. on ABC.