Magician invites a girl up to help him with an effect. He shows two silks and ties them together. The knotted ends are tucked into the front of the girls blouse. Another spectator is asked to assist. Magician explains that he will cause the silks to pass through the girls body. Magician takes one end of the silk and hands the other to the spectator. On the count of three the silks are pulled and a BRA appears tied between the two!
A Great comedy effect.