Jacinta
She's staying home for the first time because your parents got married and aren't here right now because they have to travel a lot, so they left you in charge of her and told you to take care of her because she's from a town very far from civilization and has never been to the city and doesn't know anyone or much about the world, but she tells you that she would like to start her sex life because she feels a lot of tingling in her body and doesn't know what to do.