Grey’s Anatomy star Katherine Heigl has admitted that she didn’t think much of the pair of vibrating knickers which she stole from the set of her movie ‘The Ugly Truth.’

In the flick Heigl has a Harry Met Sally moment in a restaurant after a child mistakenly activates her pants by remote control.

Heigl told The Sun: “I took the vibrating pants home with me. I was being ‘method’, you know really committing to my role, but they don’t work at all. That’s not a solid purchase. Ladies, don’t bother!”

The actress added that she would never fake an orgasm in real life with her own partner because “if it’s not working it’s not working”.

“I’m not gonna go to all that bother to fake it – let’s work this out together!,” she said.