Kourtney Kardashian is having more children with Scott Disick, yet she’s the one who is drawing the line on marriage in their relationship. She says she has “commitment issues.”

Kourtney appeared on Jimmy Kimmel live last night (June 6) with sisters Kim Kardashian and Khloe Kardashian. And, she revealed her feelings.

“Do you wanna be in my therapy session?” Kourtney laughed when asked about marriage.

“First of all, I have realized that I have major commitment problems during this pregnancy. I’m really claustrophobic, and all my issues – and I have a lot of them – they all stem from this thing,” she tried to explain.

“I can’t commit to anything… but I love Scott, and he is my partner.”

Although Disick is often portrayed on their reality show as a party boy who likes to drink, he has expressed a desire to get married.

“We are committed to each other; we are together; we have a great partnership – I don’t think I’m any different than Khloe and Lamar [Odom],” she added.

Kimmel made a sly joke about Kim’s abortive 72-day marriage to Kris Humphries. “Why don’t you try it for a little while like Kim did?” he asked

The sisters clapped, laughed and went along with the joke, but did not respond. Check it out below.