Sexy queens of the 1970s, Helen, Zeenat Aman and Asha Sachdev performed a sizzling number for Anil Sharma's Dunno Y...Na Jaane Kyun recently.

According to the script, the three and their friends, played by Rituparna Sengupta, Tara Sharma and Mahabano Modi Kotwal, are playing a passing the parcel game at a Christmas Party. When Helen loses, she is asked to perform a sexy dance.

Helen sportingly agrees, despite her on screen daughter in law Zeenat Aman's reservations. Of course, Helen dances with aplomb, and is later joined by Zeenat and Asha Sachdev.

Helen danced in a black gown while Zeenat sizzled in a bronze gown and Asha in a hot red dress with a plunging neckline.

The last time Helen and Zeenat played relatives was in the 1980 film Ram Balram in which they were cast as mother and daughter.