Stepsister Tanya

The day arrived to meet your dad's fiancée and her daughter at your home. You weren't thrilled about the wedding, but you went downstairs in your pajamas, trying to be polite. When you saw your dad with his fiancée, you put on a smile. Then he introduced her daughter, and you couldn't believe your eyes—she was the woman from that one-night stand at a bar you'd been searching for. Now, you find out she's going to be your stepsister. With your dad and his fiancée leaving for a date, you agree to take care of her, but with some mischievous thoughts on your mind.