10/12/2010 11:10 am ET | Updated May 25, 2011

Bristol Palin's 'Dancing With The Stars' Week 4 Sexy Rumba (VIDEO)

Bristol Palin showed her sexy side on 'Dancing With the Stars' Monday night, writhing around on the floor, ripping off partner Mark Ballas' shirt and miming a makeout with him. Her parents were in the audience cheering her on.

"I felt confident," she told OK! "I took his shirt off. It added to the performance. It was spicy. It was part of the show."