Throughout the SeriesEdit
In 48 Hours, Amy tells Jake that she has a date with a guy who works with her friend. Jake, knowing this friend has to be Kylie, looks at Kylie's Facebook to find out who it is. Kylie only has seven male coworkers so Jake is able to figure out that Amy has a date with a man named Luke Mueller.
In Chasing Amy, Kylie appears for the first time when Jake and Rosa visit her while searching for Amy who has gone AWOL moments before her sergeant's exam. Kylie tells Rosa that she likes Jake, but not as Amy's boyfriend or as a Trivia teammate. She accessed their database and confirmed for Jake that Amy likely checked out a familiar case file recently.
In Bachelor/ette Party, Kylie threw Amy a bachelorette party. Kylie finds out in a game of 'Never Have I Ever' that Amy had a one-night stand with the lead singer of the band that played at her wedding, prompting her to tell Amy that Jake had booked the same band for their wedding when Kylie suggested it, assuming Amy liked them. Kylie went with them to Bed-Stuy to get the singer out of the gig. Kylie's quirks also made Gina want to make fun of her, especially when she couldn't berate Amy for the duration of the evening due to a promise.
Kylie is mentioned to be Amy's only friend. She also appears to be Amy's main source of dates as most of Amy's dates appear to be acquaintances of Kylie. In turn, Amy is also her best friend. Kylie states that she doesn’t like Jake as a boyfriend for Amy.