Kristin Cavallari believes motherhood has helped her "put everything into perspective."

The reality TV star and her fiance Jay Cutler welcomed their son Camden into the world in early August.

Kristin says she has transformed in many ways since becoming a parent.

"[It's] amazing. You really feel like your life is complete," she told Us Weekly.

"He puts everything into perspective and makes you realise what your priorities are. Just seeing him smile melts my heart. It's the most amazing feeling."

Kristin is receiving a lot of help from Jay.

She is impressed by his parenting skills.

"He is a really great dad," Kristin gushed.

Although Kristin is known for her work in fashion, she has been keeping it casual since Camden was born.

She won't doll herself up unless she and Jay are planning on getting romantic.

"Honestly, the only time I wear makeup is when we have date night!" she said. "During the day, I don't wear any makeup. But I actually enjoy it. It's nice to give my skin a break, and it's not exhausting for me to get ready in the morning.

"Luckily, Jay likes me with no makeup on! So it works out."