Kim Kardashian is steadily getting closer and closer to boyfriend Kanye West.

The couple has spent nearly all their time together since they began dating several months ago and now West has taken another step - he introduced the reality star to his extended family.

Kardashian went along with West to Oklahoma in the days after Thanksgiving to spend time with the family of the rapper's mother, Donda West. Kanye was famously close to his mother before she died unexpectedly during a plastic surgery operation in 2007.

A source close to the couple revealed that in addition to spending time with his family, West brought Kardashian to visit his mother's grave site.

"Kanye brought Kim to Oklahoma City the day after Thanksgiving to pay respects to his mother [Donda West] and to meet his mother's side of the family. This was her first meeting with them," the insider said.

As the couple continues to grow closer, their relationship has become more and more serious. Recent reports said Kardashian and West are shopping for a home to share together in London, where they recently traveled to.

"[Kim and Kanye] are just fascinated with British culture. They so welcome in England and now feel ready for a change ... and a new challenge outside of the U.S," a source said. "Kim K. especially loves the idea of a cute, nice three bedroom townhouse located close to one of London's beautiful family parks."

A new home may not be the only thing the couple is planning. A friend of Kardashian and West told Radar Online that the 35-year-old rapper has been planning to pop the question for quite a while, and he is simply waiting for the right time and the perfect ring.

"It's only a matter of time before Kanye pops the question," the source said. "They are madly in love with one another, and as far as Kanye is concerned he wants to spend the rest of his life with Kim. It's just a case of making sure the ring is perfect because she's his princess."