Emma Curious (previously Darga) is the daughter of Drew Curious and Aiyana Curious and also the younger twinsister of Ana Mace. She mostly resembles her father while her sister looks more like her mother.
Her father was engaged to Genesis Curious while he cheated on her with Aiyana. Genesis broke off the engagement and Drew married Aiyana, resulting in the pregnancy and birth of the two girls Ana and Emma.
Their babyhood was a bit chaotic, as Genesis decided not to move out and stay in the Curious household. Thereby Aiyana lost interest in the girls, what made Genesis change their diapers and feed them their bottles.
When Emma was a toddler her parents made more effort, so she learned her toddler skills who Aiyana taught her.
Together with Ana, Emma got accepted in to private school. She didn't make so much friends and could be described as a 'loner'.
Emma chooses the pleasure aspiration and she becomes good friends with a distant relative Harper Curious. When her mother turns into an elder her parents leave the house and Emma stays together with her sister Ana and Lars. She meets an attractive boy named Blair Mace, they share their first kiss but their relationship is only for a short time. Emma likes Blair, but doesn't think a relationship is her thing.
When becoming an adult Emma meets Léon Darga, a Sim that even a Curious had never seen. They fall in love with each other and get married. When they're trying to get a baby, Léon turns out to be infertile. If that's not bad enough, her sister Ana turns out to be pregnant and the father is her ex-boyfriend Blair. Emma is both furious and jealous. It gets even worse when both her parents die of old age and after the birth of her nephew Kevin, Genesis dies as well.
For some reason Emma is getting more and more annoyed by the presence of her sister and brother-in-law. She tries almost everything to get rid of them; arguing, hitting on Blair, causing little unfortunate accidents, however they all don't seem to work. Also little Kevin is getting on her nerves more and more; he screams a lot and wants a lot of attention and most important of all: he is not hers. Ana knew that Emma and Léon were trying to get children even before Ana got pregnant. Emma can't stop thinking that Ana just did this on purpose and everyday the hate for her sister grows bigger and bigger.
One night when Emma comes home from work she sees red flames flying out of the house, she is startled and runs into the house and the first Sim she finds is Kevin. When they run out of the house she calls the fire station. After putting the fire down and discovering that both Ana and Blair had died in the fire Emma tells the police that she found Kevin outside, implying that his parents might have not only been uncareful with their son but also possibly with any domestic appliances.
The case was labeled as an accident and with only Emma and Léon left as family for Kevin, they were chosen to be his adoptive parents, now Kevin is part of the Darga family.
While focussing on her career she doesn't notice that her husband Léon feels abandoned and looks for his love somewhere else. While her son tries to find some love of both his parents, he gets none as they are almost never inside the house. Finally Emma notices something weird about those late overtime work he has to do and starts to follow him. It doesn't take long for her to realize that Léon is cheating on her. From that day on she follows her husband everytime when he has to work "overtime", until the day both Léon and Tammy are waiting for her at home. Léon tells her that he no longer can be married to her and he would like to have a divorce. An unprecedented anger rises up inside Emma, but she knew it was important to stay calm now, as they still had to tell Kevin. When Léon and Tammy left her house she followed them one more time, knowing that this would be the last time.
The next day Emma changed her and Kevin's last name to her maiden name: Curious.