Kanye West refuses to allow his daughter to wear a bikini.

The 36-year-old rapper, who previously vowed to be an extremely protective father, was upset when his fiancée Kim Kardashian recently put their seven-month-old daughter North into a two-piece swimsuit to take her for her first dip in a pool because it made him ''uncomfortable.''

The 'Keeping Up with the Kardashians' star, 33, told 'The Ellen Degeneres Show': ''(He) is a little uncomfortable with North wearing a bikini. I tried it once and it did not go over well. It has to be a one-piece.''

The couple took their baby girl swimming for the first time in Miami, Florida in late November.

Kim wrote on Twitter at the time: ''We took our baby girl swimming today for the 1st time, she loved it so much! #BestDayEver''

Shortly before North's birth last June, 'Bound 2' hitmaker Kanye said he was determined that North would enjoy a normal childhood and would not let people to take advantage of her.

He said: ''This is my baby. This isn't America's baby.''

He added: ''One of the things was to be protective, that I would do anything to protect my child or my child's mother. As simple as that.''