The reality TV was joined by her sister Khloe for a trip to pet store Fauna in New York City on Wednesday (12.10.11) to purchase the slithery reptile.
Although Khloe, 27, went along to see her 32-year-old sibling select her snake she was grossed out by her choice of pet.
She told an onlooker: "Eww! It`s not mine."
After picking a particularly "big and vicious" snake and buying a tank and all other essentials for the cold-blooded animal, Kourtney - who has a 22-month-old son Mason with her long-term boyfriend Scott Disick -arranged for the creature to be taken back to the Gansevoort Hotel where she is staying.
A bellhop then carried the reptile, which was "snapping at the glass" of its tank, from Kourtney`s car to a cart and up to her suite.
Although Kourtney is seemingly happy to splash her cash on exotic pets, her other sister Kim like to spend her money on more luxurious purchases.
Earlier this month, the 30-year-old star spent almost $300,000 on a white Ferrari 458.