Jenkins at first appeared a bit uncomfortable with the fast-moving, sassy and sexy Jive choreographed by her partner Mark Ballas. The Brit said she was worried about shaking her "naughty bits."
By the end of their dance, judge Bruno Tonioli called her the blonde bombshell unleashed.
Judge Len Goodman and Tonioli praised Fegan and his partner, Chelsie Hightower, for their routine, calling it fresh and traditional, yet slightly cheeky. The young couple's Quickstep had an air of sophistication.
Maria Menounos, who danced through the pain of a strained rib, and her partner Derek Hough came in third place with 25 out of 30 points.
William Levy and partner Cheryl Burke tied them with their Quickstep.
One point behind them was a driven Donald Driver and his partner, Peta Murgatroyd. Driver said he wants to win it all.
"Get ready," he said. "We're coming for everybody."
Sherri Shepherd and partner Valentin Chmerkovskiy got 23 out of 30 points, and Jaleel White and partner Kym Johnson got 22 out of 30 points.
Jack Wagner and partner Anna Trebunskaya tied Gavin DeGraw and partner Karina Smirnoff with a score of 21.
Rounding off the bottom three were Melissa Gilbert and Maksim Chmerkovskiy (20), Gladys Knight and Tristan MacManus (19), and Martina Navratilova and Tony Dovolani (17).
"Winning is great, but being able to better myself every week and making this guy (Chmerkovskiy) smile is more than enough," Gilbert said.
On Tuesday's "Dancing With The Stars" elimination show, this week's scores are going to be added to last week's scores, along with fan votes.