Sierra Petrovita

Sierra Petrovita is a Nuka-Cola addict living in Girdershade in 2277. Ten years later, she can be found at the Nuka-World amusement park, on her ultimate Nuka quest.

Background
Sierra is young, attractive, blonde, and completely obsessed with Nuka-Cola and everything related to it. The causes of her obsession are unknown. It may have a psychotic background. Or it may be some kind of impairment. What is known is that Petrovita is addicted to Nuka-Cola and has been drinking the beverage in copious amounts for years. Her obsession started at the age of sixteen, and over the next ten years she threw away her parents' fortune on acquiring bottles of Nuka-Cola and its merchandise from merchants, travelers, and towns throughout the wasteland. She is largely incapable of holding a conversation without trying to steer the subject towards the soft drink. Her obsession would have likely killed her a long time ago, but it seems her beauty attracts men willing to risk life and limb to protect her. One such man is Ronald Laren, sharing Girdershade with her in 2277. Unfortunately, men are the last thing on Sierra's mind - unless they're bringing gifts in the form of Quantum Nuka-Colas...

Ronald helped her acquire some Nuka-Cola artifacts for her hoard, and has even joined Petrovita's Nuka-Cola Fan Club as its first (and only member). President, Recording Secretary and Treasurer Petrovite was delighted to have someone to share her obsession with, unaware of Laren's feelings for her. To her, he's simply a friend who keeps her safe from raiders.

Sierra managed to survive the treacherous Capital Wasteland and even expand her Nuka-Cola hoard... Erm, museum. By 2287, her obsession led her to the derelict Nuka-World, tracking down more artifacts for her collection. The ultimate goal is to win an ancient, forgotten contest: Find ten hidden Cappys in the park and meet Bradberton in person. He must be long dead, of course, but what matters to Sierra is becoming the greatest Nuka fan in the world... And preferably not get ventilated by raiders who claimed the park. They tolerate Sierra's presence as long as she keeps to the market.

Daily schedule
In Fallout 3, Sierra stays in her house all day drinking Nuka-Cola and doing other miscellaneous things. In addition, she hounds passing travelers for any trace of Nuka-Cola Quantum.

In the Fallout 4 add-on Nuka-World, she can be found near Bradberton's office in Nuka-Town USA.

Quests

 * The Nuka-Cola Challenge: Sierra has her own Nuka-Cola "museum" (a display of her collection within her shack) which she gives tours in. After completing the tour she will give the Lone Wanderer an ice cold Nuka-Cola and asks them to gather 30 Nuka-Cola Quantums for 40 bottle caps per bottle which adds up to 1200 caps. Completing the quest her way grants good Karma.
 * Mississippi Quantum Pie: After completing "The Nuka-Cola Challenge," she can make the Lone Wanderer a Mississippi Quantum pie out of 1 Nuka-Cola Quantum, 1 bag of flour and 1 bottle of vodka.

Quests

 * Cappy in a Haystack: Sierra asks the Sole Survivor to find 10 hidden Cappy images in the park.

Appearances
Sierra Petrovita appears in Fallout 3, the Fallout 4 add-on Nuka-World, and Fallout Shelter.

Bugs

 * If you kill Sierra and then steal items from her house, she may protest, even though she is dead.
 * If you fight any creatures outside of Sierra's house and then enter Sierra's house, you will not be able to communicate with her because she is fleeing. If you enter her house while enemies are still nearby, she will flee the house and disappear forever. Sometimes, she may run for cover at another house in Girdershade and can be found there, rather than fleeing town.
 * If you plant an explosive on Sierra and then ask her to make a Mississippi Quantum pie, she will start making it, but explode during the process. The player is stuck waiting for it to be made. Loading a previous save fixes this problem.