Bruce Jenner walking with sunglasses.

Bruce Jenner’s rumoured breast augmentation was caught on camera according to reports.

Bruce Jenner’s rumoured breast augmentation was caught on camera according to reports.The reality star has been rumoured to be transitioning into a woman for a number of months. And this month, the 65-year-old is alleged to have had a boob job, with the procedure being filmed for his own docuseries.

“Cameras were there during Bruce’s breast implant surgery. The days leading up to the surgery were very emotional for him, and there was talk about canceling the surgery,” a source told Radar Online.

“He was very nervous and was having last-minute doubts about making such a drastic alteration to his physical appearance. Filming took place for a few minutes during the surgery, and immediately picked up in the recovery room after it was over.”

Bruce reportedly halted filming of his own reality show after being involved in a fatal car crash in Malibu back in February. But it seems the Olympian has built his confidence back up to feel comfortable with the cameras around him once more.

“Bruce will have the final approval about what footage will be shown on the docuseries,” the insider added.

The news of his breast op comes after it was confirmed on Monday that the Keeping Up with the Kardashians star will sit down for an intensive two-hour interview with veteran ABC News presenter Diane Sawyer.

While the outlet declined to give many details on the content of the talks, it said in a statement that the interview was “far-ranging and exclusive” and would air on April 24 in America.

To follow more of Bruce Jenner's life, tune in to reality hit Keeping Up with the Kardashians on Wednesday 8 April at 18:00 on E!