It looks like baby Saint West is getting his diapers changed in style! And considering mom Kim Kardashian has an estimated net worth of well over $100 million, it’s really no surprise that her baby accessories are incredibly lavish.

While most people budget when they have children, it’s clear motherhood has no price limit for Kimmy who dropped $23,000 on an XL Hermés Birkin to use as a diaper bag for her youngest kid.

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“She says her children deserve nothing but the best,” a source close to the Kardashians exclusively tells Life & Style. “Kim doesn’t think twice about carrying diapers in a bag most people could never afford.”

Well even though 18-month-old Saint is basically rocking designer diapers, his sister, four-year-old North, proved she was just your average, normal toddler on her birthday.

MORE: Kim Kardashian Gifts North West the Cutest Pomeranian Puppies We've Ever Seen

While she once got Kidchella, this year Nori and her fam celebrated in a more low-key way… at Chuck E. Cheese’s!

In snaps from the party, the curly-headed cutie can be seen wearing a little tiara in front of her purple-sprinkled cake.

"My baby girl turned 4 years old today! She's my light & my everything!!! I love you to the moon & back North," Kim wrote on Instagram.

Even though Nori’s birthday was pretty normal, it’s clear that Kim doesn’t shy away from pampering her babies!

For more on this story, pick up the latest issue of Life & Style, on newsstands now! And scroll through the gallery below to see North and Saint’s cutest moments!