She was "winning" all season long on The Bachelor, but Courtney Robertson doesn't stand a chance to go home with the trophy on Dancing With the Stars.

Despite rumors to the contrary, Ben Flajnik's vilified fiancee will not be showing America her mambo skills in the near future. 

"It's definitely not true," a source tells Us Weekly. “The first episode is almost totally together now and everyone has learned their dances."

If Robertson, 28, was to join the cast, she would have less than a week to rehearse. And even though former Bachelor contestant Melissa Rycroft was a last-minute edition in season eight, the source says it's more likely that the model will "sit in the audience.”

On Thursday, a smiling Robertson flashed her 3-carat Neil Lane engagement ring for the first time since she and winemaker Flajnik, 29, announced they were reconciled and engaged on Monday's After the Final Rose special.

Tell Us: Did you want to see Courtney on Dancing with the Stars?