Kris Jenner is beyond excited that her daughter Kourtney Kardashian is pregnant with her third child but is reportedly upset that she won't marry longtime boyfriend Scott Disick. Kardashian and Disick, who are parents to Mason, 4, and Penelope, 23 months, have been together since 2006 but have yet to walk down the aisle.

According to the Daily Mail, Jenner is once again pressuring Disick and Kardashian to say "I do."

"Committing to parent three kids, when you haven't even committed to each other doesn't cut it in Kris' book," a source told the Daily Mail. "She comes from a time when, if a girl got pregnant and was still single, she got married as soon as possible."

"And although she understands times have changed, she still has religious values and feels it's only right that Scott make an 'honest woman' out of her little girl," the source added.

Reportedly, Disick bought an engagement ring for the reality star in 2011 but never gave it to her because Kardashian wasn't ready to get married.

"Up until now Kourtney hasn't been interested in getting married, but at 35, she's beginning to feel it's time," the source said. "She's expecting the couple's third child and if Scott would agree to a small, quiet ceremony - nothing like the one Kim [Kardashian] just had - I think she'd be up for it."

The source claims that part of Kardashian's hesitation is due to Disick's past troubles with alcohol abuse.  

"It's no secret that Scott and Kourtney have had their share of ups and downs," the source said. "So maybe there's still a part of Kourtney that wants to make sure that at 31, Scott has outgrown his bad behavior and is ready to be a proper husband, before she agrees to make it legal."  

According to reports, Kardashian is pregnant with a boy and will welcome the baby in December.