Kourtney Kardashian's son is a "mommy's boy".

The 31-year-old socialite - who has seven-month-old Mason with boyfriend Scott Disick - is amazed at how well her partner has taken to parenthood and loves watching him with their baby, but insists she also has a close bond with the tot.

She said: "Scott's doing fantastic as a father. I love watching him with Mason. He makes him crack up so hard. He makes him laugh. It's fun to see them together.

"Mason is such a mommy's boy."

Scott, 27, also spoke about how much his life has changed since becoming a father to Mason, insisting he has become more responsible.

He said: "It's a whole different world now that I have a child. And, yes, I have grown up quite a bit."

The reality TV star also paid tribute to Kourtney's "amazing" parenting skills, admitting he is more in love with the brunette beauty than ever.

He told People.com: "It's just one more quality that I love about her now.

"I could never have imagined her to be the amazing mother that she is today. And now it's just one more reason that I love her."