The home video, which was featured on the model's official app, was split into two parts on Instagram Tuesday, with the first video showcasing the surprise and the second featuring an 8-year old Kendall running out to the driveway to meet her new pet.
"It's almost Christmas and I'm just sitting here reminiscing," the model captioned the post. "I cried serious tears of joy this day. My first horsie!" she shared with fans separately on her website.
"Oh, that is so dope!," Rob mentions in the second video as he was capturing the special moment "It's beautiful."
Earlier this month, Kim shared the Kardashian clan's lavish Christmas decorations on Instagram along with details about the family's annual Christmas Eve party.