James Harden may not be listening to his friends or Lamar Odom. Instead, he may be listening to his heart.

The recently turned 26-year-old NBA superstar could be ready to settle down with his 31-year-old girlfriend Khloe Kardashian, hollywoodlife.com is reporting.

Lamar Odom's "Fatal Attraction" Toward Khloe Kardashian May Be Scaring Off James Harden

The two first were romantically linked in June when they were photographed together in Hawaii.

"James has promised Khloe that he will be the one that will be her 'baby daddy," a source close to the Houston Rockets guard tells hollywoodlife.com. James is "all in for this relationship" the source says, adding that James is thinking marriage and that 'he has told close friends that Khloe is the one!'

Lamar Odom Says James Harden Is 'Wasting His Time' With Khloe Kardashian

It's already been a wild, three-month ride for the couple. Just a couple of weeks after their Hawaii excursion, Harden was accused of having a one-night stand with an Australian student in Sydney. But after reports that she demanded an explanation in July, they remained together.

Earlier this month, another hollywoodlife.com report said Harden's friends wanted him to break off the relationship. Shortly thereafter came reports that the Keeping Up With the Kardashians cast member's ex-husband Lamar Odom confronted her outside a spin gym.

Then, Odom did an interview with In Touch magazine and said Harden was "wasting his time" with Kardashian because she is Odom's soul mate.

Kardashian and her family helped Harden celebrate his 26th birthday on his yacht in Marina Del Rey, Calif., the Daily Mail reported. Photos show Kardashian in a sequined white dress and Harden in all white - undershirt, dress shirt, ripped pants and canvas shoes - with a large gold chain around his neck.

People magazine showed a photo of Kanye, Kardashian's brother-in-law, and Kris Jenner, her mother, asleep on a couch as the party went on around them.

The Daily Mail added that Kardashian had to have help getting off the yacht.

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