Kourtney Kardashian‘s family is set to grow in size, if the reality star gets her way! Scott Disick, on the other hand, is not quite so sure his girlfriend going off birth control is the best idea.

“How many children do you think we could fit in this house?” a pregnant Kourtney Kardashian was seen asking dad-of-two Scott Disick on Sunday’s Keeping Up With the Kardashians. “In the playroom, I could build bunk beds for four.”

“I don’t want to be outnumbered by my children!” he shot back.

“I need to see what it’s like when I have two, but [having kids] is what life is about,” the mother of Mason and daughter Penelope, now 8 weeks, replied. “I’m not going on the pill [after giving birth]. I don’t believe in it anymore!”

In 2009 Kourtney told the press her pregnancy with son Mason came about as the result of forgetfulness when it came to taking her birth control. “This probably sounds so dumb,” she admitted, “but there’s so many times I’ll forget to take my pill and I don’t think it’s that big of a deal. It’s just so stupid.”

photo: PR Photos