Despite performing with professional dancers on 'Dancing with the Stars', Sadie Robertson, 17, picked boyfriend, Blake Coward, as her favorite dance partner and shared a picture of them dancing on the beach.

Robertson showed her affection for her significant other by posting the picture on her Instagram account. She claimed that while Mark Ballas and Derek Hough, were "pretty good [dancers], this cutie of mine is definitely my favorite guy in the world to dance with."

Not much is known about Blake, but some fans are leaning toward the idea that he and Robertson will be get married soon, despite her young age.

Robertson's brother, 19-year-old John Luke, recently got engaged to Robertson's best friend, 18-year-old Mary Kate McEacharn. So there's a chance Robertson and Coward would follow suit.

Robertson danced with Hough last week during switch-up week. It was an emotional week for both as Hough shared with Robertson and the audience the story of how he was bullied as a child. He said that aggressive students had even held a gun to his head and threatened to shoot him.

In the latest episode of 'Dancing With the Stars', Robertson resumed her partnership with Ballas and performed a rumba.

Robertson wore a beautiful ballerina-pink dress with silver accents, an outfit pre-approved by her father, Willie. Also, she and Ballas had her dance pre-approved by her mother and grandmother prior to the show.

"I hope this week, it (the dance) doesn't come off as sexy, but as sweet," Robertson said, emphasizing her religious beliefs and preference for modesty.

Robertson and Ballas' performance earned the duo a 35 of 40, which brought Robertson to tears.

Robertson can be seen on 'Dancing with the Stars' every 7 pm Mondays on ABCTV.