The former Olympic athlete was unaware his step-daughter was going to be proposed to by her boyfriend Kanye West at the AT&T Park stadium in San Francisco on Monday night, and only found out the good news once the lavish event had taken place.
Bruce - who recently split from Kim's mother Kris Jenner after 22 years of marriage - reportedly disapproved of the 33-year-old reality star striking up a relationship with Kanye so soon after her marriage to ex-husband Kris Humphries ended in 2011.
However, Kim - who has four-month-old daughter North with Kanye - phoned Bruce almost "immediately" after the 36-year-old rapper popped the question as she "considers Bruce to be her father," according to TMZ.
Meanwhile, brunette beauty feels like the "luckiest girl in the world" to be marrying her beau and believes the proposal, which Kanye organised himself, was truly "magical".