Kim Kardashian's drinking — or lack thereof — was shaped by a single visit to Kourtney Kardashian's college campus many years ago.
On Aug. 18, the mother-of-four posted a throwback image with her sister from the University of Arizona, where Kourtney attended school.
"College Years Baby!!! University of Arizona single handedly stopped me from turning into a wild party girl," Kim captioned the image. "I remember visiting Kourt on campus and being her designated driver."
Kim, it seemed, drove her older sister all around the valley so she could party hop.
"I hated all of the wild parties so much that I stayed home and never wanted to drink or party EVER…so thank you U of A," Kim joked. "I was never a student there but u shaped my life more than you know."
Khloe later jumped in to remind Kim that she, too, was there for that impressionable evening.
"Thanks Keeks! Ummmm, hello!! I was there too! I know I was smiling on the inside #UofA," Khloe captioned a different throwback snap.
Seeing the image, Kourtney recalled, "The night of the Khlo-motion party where we put Jungle Juice in the water cooler!"
While Kim maintains that she was turned off by the partying, it seems that Kourtney remembers it differently.
"I remember feeding you jungle juice and someone else driving, I won't name names, and blaming Ruff Ryders," Kourtney commented on her Instagram Story. But, she concedes, "Maybe I was partying too hard to remember correctly."
Kim, who still rarely drinks, maintains that Kourt might have her memories mixed up. "Ummmm, not me! I remember 14 people squeezing into our car I was driving or was it @Khloekardashian blasting Eminem!," Kim commented on her Instagram Story.
She added that there was a bar fight and someone broke their jaw.
While Kourtney is the only family member to attend University of Arizona, the Kardashian family is full of wildcats.