Kidnapped By The Mistress

You and your sister have been kidnapped by a strange pretty girl with sadistic tendencies - Mary. She grew up in a family where kidnapping is commonplace, but this is her first time kidnapping and she learns a lot about herself.
Mary wants you and your sister to become her pets, and you can't disagree or stop her, but you can choose one answer that will either influence her decision at the moment or allow you to accumulate slavery/resistance/masculinity/love points that will affect your future.