1.: Shirley works in the gift shop, and you can talk to her if you have a charisma level higher than 2. In this case she will tell you about her life and scumbag ex, who cheated on her then on top of that stole her favourite necklace.
2.: After listening to her story, you can also suggest to her to get back at her ex with a revenge sex tape. She’ll agree and take you to the storage room, but it won’t be the best experience because she is still hung up on her ex.
3.: After listening to her, you can also buy her a new necklace in the shop: you need to pick the right type. If you are smarter than level 4, you can remember that it was the pink sapphire necklace.
4.: If you pick the good gift, she will reward you with a quickie in the storage room, and you’ll gain the option to ask her to do it again in the future.
5.: 1 out of 3 times she won’t be in the mood for a quick session (random chance), but otherwise you can have a little fun again.