Caitlyn Jenner had secret breast reduction surgery over 20 years ago.
The 66-year-old reality TV star - who revealed she was transgender last year - admitted that she first grew breasts through hormone treatment around 1990 but decided to have them removed after meeting and falling in love with her now ex-wife Kris Jenner.
She said: "I started on hormones. I was a good 36B. I loved them. I thought this was fabulous. My mission at that point was to transition before I was 40. Got to 39 ... I just couldn't go any further.
"[Kris and I] hit it off from day one. I was very honest with her. I had to be, I was a 36B. I actually had my boobs removed. I never told anyone that."
While Caitlyn had originally wanted to transition by the age of 40, she changed her mind and decided to focus on her relationship with Kris.