It's no secret that Kourtney Kardashian had a boob job because she was the one who admitted it! As a Kardashian, she's not shy about plastic surgery. The doctor did a good job by only increasing her bra size by a cup while keeping the same shape of her breasts in tact. Kourtney Kardashian's breast size was a 36 B before plastic surgery, and is a 34 C after.
When asked whether or not she had a boob job, Kourtney Kardashian had this to say, "I have had breast implants, but it's so funny cause it's not a secret, I could care less." It's really not that surprising that she would be so open about it. Her mom had a facelift practically on live television. Her sister had Botox injections on the show as well. Oh ya, and Bruce Jenner is their step dad. It's safe to say that plastic surgery runs in the family.