New York: Freaky Friday star Lindsay Lohan reportedly suffered bruises from dancing on a stripper's pole to prepare for her role as a topless dancer in her new movie, I Know Who Killed Me.

The actress got a taste of occupational hazard after she got hurt while taking classes in the art of undressing.

An e-mail she sent to pals last week has the subject title: "They're all whores, they're all whores . . . except for some obviously!" Lohan wrote in the note, "So . . . three hours of pole dancing and bruised. everywhere . . . I mean we're talkin' like, Upper and inner thigh bruised . . . like a walking black-and-blue mark.”

"I mean really though, really, I didn't know it was actually possible to have bruises in such areas of the body. Strippers dude, I tell you, I really respect the [c-word]s now. . . I'm not gonna lie to ya,” she added.

Lohan's rep, Leslie Sloane Zelnik, said, "She's been in rehearsals for the film and has been taking classes from Sheila Kelly." Kelly developed the famed "S Factor: Aerobic Striptease Workout and Pole Dancing."

"Her character is a stripper, and she now realises that the job isn't easy. We should give these women credit," Zelnik told the New York Post.

Lohan faces five more weeks of bruised thighs while she completes the picture, but that hasn't stopped her from going out. She has gone to clubs in L.A. almost every night during shooting. But, much to her friends' and family's relief, she hasn't been drinking and has been making it to work on time.