The Porno Prank

Shari was the victime of a "prank." She was kidnapped while wearing her bra and panties

She was brought to a studio where she was hogtied and had a vibrator shoved up her rectum and another in her pussy. After a half an hour of torment, the casting director showed up and realized that the crew had grabbed the wrong girl. They were there for Shari's twin sister Sara.

Sara was a porn star, and Shari was a stage actress.