This season's 'Dancing with the Stars' pairings are being swarmed with dating rumors, and Season 19 partners Derek Hough and Bethany Mota, are no exception.

The dating rumors between Hough and Mota came as a surprise to some fans, since unlike the other pairs, the two have remained comparatively low-key.

Some believe it's unlikely that the two are romantically involved, since there is quite a large age gap between them. Reports say that their relationship is that of an older brother-younger sister type and their interactions are similar to how Mark Ballas treats his teenager partner Sadie Robertson.

Beyond that idea, Hough is allegedly linked to 'The Adjustment Bureau' actress Jessica Lee Keller.

Earlier this year, Hough was spotted smiling and holding hands with a "mystery brunette," who was reported to be Keller.

Hough and Keller shared the stage together in 'Dancing with the Stars' back in 2012, where Hough teased Keller with a rose.

Some people say that Keller was not really the "mystery brunette" photographed with Hough, but nonetheless, the picture indicates that Hough might be in a relationship with her right now.

Even though Hough may not be dating Mota, it is clear that the professional dancer adores his YouTube sensation partner. In a blog post, Hough was all praises for Mota's accomplishments.

"As I'm sure you know, Bethany Mota is my partner. I'll be honest - I didn't know exactly who she was. After producers told me she was my partner, I looked her up, and she's amazing. I'm in awe at what she's accomplished at such a young age."

He went on to say, "She's actually the youngest partner I've ever had too. She's just an absolute sweetheart. I love what she stands for and what she's built - and that her fans call themselves the Motavators! It's pretty remarkable what she's done when you think about it," read a part of Hough's blog in TV Guide.