New Delhi, April 19 (ANI): Vidya Balans role in director Milan Luthrias film Dirty Picture gets dirtier. She will be seen in various sexy outfits like hot pants, low necklines, translucent tube tops and petticoats. The bollywood beauty has also put on weight to look chubby and curvier for the latter part of her role. She will be required to bare her mid riff, thighs and cleavage. Talking on this producer Ekta Kapoor said, Well, there are two sizes that Vidya will be seen in. One is the thinner one, the other one is where she will have to put on weight. Clearly the demand of skin show and outward display of sexuality has unnerved Vidya. A source said that she has asked her costume designer Niharika Khan to provide her with the costumes a month in advance so that she can get used to them.