Khloe Kardashian says Kim Kardashian West and Kanye West's love is eternal.

She wrote: "It's your anniversary!!!!! I love you guys!!!! I believe in love at first sight but I will always believe that the people we love we have loved before. I believe you two have loved for life times and will forever more (sic)."

Earlier Kim paid tribute to the "love of her life" Kanye as the couple - who wed at the Forte di Belvedere in Florence in 2014 - returned to Italy to mark two years of wedded bliss.

Taking to Instagram, she wrote: "Happy 2 year anniversary to the love of my life! You make me so happy! I love you so much!!! (sic)"

Meanwhile, Kim - who has two-year-old daughter North and five-month-old son Saint with Kanye - recently revealed the rapper wants more children but she is happy with just two.

Recalling the daily conversations she has with him about it, she shared: "I said no way. I was so set on my two kids and how happy I was with my life the way that it is, but Kanye has been mentioning it every single day. I'm like why is he doing this to me?!"

It's hardly surprising though that Kim isn't keen on having another child as she suffered a "difficult" pregnancy both times due to her placenta accreta.

She said previously: "The pregnancy, I wouldn't really wish that upon anyone. Anyone. It's all worth it in the end, so I would definitely suffer through that, but pregnancy was not a good experience for me. At all."