Kourtney Kardashian Acting Debut on One Life to Live

updated 03/30/2011 AT 08:00 AM EDT

originally published 03/30/2011 AT 09:35 AM EDT

If you're Kourtney Kardashian, you don't just sit at home watching your favorite soap opera – you star in it.

The eldest Kardashian sister lived out a lifelong dream when she made her debut on the ABC soap One Life to Live as Kassandra Kavanaugh, a wayward lawyer with a knack for trouble.

While Kardashian, 31, is no stranger to cameras or drama, memorizing her script – as documented on her reality show Kourtney and Kim Take New York – was a struggle.

"I'd thought I'd have two lines," the reality star said. "But my script is so long ... I'm not an actress."

Fortunately, Kardashian's scene proved to be deliciously campy, thanks in part to her costar, OLTL's David Fumero and another guest star, Wendy Williams.

The current Dancing With the Stars contestant played news anchor Phyllis Rose on the mock local news show Access Llanview.

Williams introduced Kardashian as "none other than local ambulance chaser Kassandra Kavanuagh. That's right," she said, "with two Ks."

One Life to Live airs Monday through Friday (2 p.m. ET) on ABC.

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