Kim Kardashian had breast implants to increase her breast size to a 36 D. The plastic surgery was fairly conservative and achieved a natural result. Although Kim Kardashian's breast size is very large, her breast implants don't look unnatural. Kim Kardashian deny's rumors of plastic surgery, but the evidence is there. The celebrity has had a nose job, Botox injections, and breast implants. She's no stranger to plastic surgery. Kim Kardashian's breast size increased about a cup size before and after breast implants.