Kourtney Kardashian has commitment issues.

The reality TV star is currently expecting her second child with partner Scott Disick, but says the couple have no plans to wed because she's too scared to.

"I have major commitment problems. I'm really claustrophobic and all my issues - and I have a lot of them - they all stem from this thing. I can't commit to anything - I love Scott, and he is my partner," Kourtney - who already has two-year-old son Mason with Scott - told talk show host Jimmy Kimmel.

As well as Kourtney being happy with Scott, her stepfather Bruce Jenner also revealed he has changed his opinion of the businessman, ever since he became a dad to little Mason. "I have to give him credit. He really has turned his life around. He doesn't drink anymore; he's been a great dad with Mason, he's there all the time. He's really been doing a great job. I commend anyone who can do that," he said.