Article continues below advertisementKylie Jenner wore nothing but a bra and underwear for a raunchy new campaign.The reality star, 28, bared her lean physique in undergarments from sister Kim Kardashian's fashion brand, SKIMS.Jenner debuted the Everyday Cotton collection in a series of photos shared to her Instagram on Wednesday, February 11.Article continues below advertisementSource: SKIMSKylie Jenner modeled for Kim Kardashian's SKIMS.Article continues below advertisementShe sported a busty bra and panties in four colors: white, beige, brown and black.