Reality TV star Kim Kardashian is enjoying her romance with Kanye West as the rapper is the first boyfriend she has dated who's older than her.

Reality TV beauty has romanced younger men including singer Ray J and sports stars Miles Austin and Reggie Bush, and her estranged husband Kris Humphries is five years her junior.

But the 31-year-old socialite admits one of the reasons she's attracted to 35-year-old West is his age.

She tells Oprah Winfrey, "Before, all my boyfriends were younger. I always dated five years younger. Now I just love that I'm with someone that's a couple (of) years older than me."

Kardashian also insists she's "totally growing up" since dating the hip-hop star, and moving on following her 72-day marriage to basketball ace Humphries.

She adds, "It's like how (my sister) Kourtney had this epiphany when she had her baby and she changed into a different person, I feel like I've had an epiphany over the last year. For what I've been through... I am that changed person, just from my own experiences."

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