Kirsten is a minor character in Beyond Two Souls who Jodie hangs out with at a party in one early-game mission.
The party is Kirsten's, and it's being thrown in her house for her birthday. Jodie brings her a book of poetry for her birthday, which, along with her strange reputation, immediately puts her on Kirsten's bad side.
Kirsten has been hiding a case of beer from her mom for the party, and Jodie can drink beer and get high for the first time, if the player chooses to allow it.
