Fifi pressed her black ballpoint pen against the notepad in front of her, jotting down notes on the chapter she had just read. Ever since she started business class, her nose was buried deep into marketing books, which she had surprisingly taken a great interest in. In the middle of Fifi's studying, her brother sat down naked beside her. He stroked his cock, looked over at his sister's notepad, and Fifi began talking about the idea of getting a degree in business. "You know, I'd like to get a degree in business...I'm not sure in what yet, but I thought it would be good to have," she said to him. Nicky threw his two cents in as he spread his sister's legs apart, pulled down her panties, and placed his body over hers. Fifi continued to read her business book out loud as Nicky's cock penetrated her pussy lips. This was normal in her family. If Nicky or Dad needed to get off, they'd use her body or Mom's. So, Fifi wasn't bothered by it at all - in fact, she was used to it. She kept studying as her brother moved her into different positions, thrusting his cock inside of her for his own pleasure. Fifi buried herself in her business book, reading and taking notes in her head as he fucked her missionary and doggystyle. Once Nicky was ready, he came inside of his sister. "Are you sure you don't want to help your sister with business stuff? This is overwhelming," Fifi said, her hand propped against her head. "Sis, I don't know enough to help you," Nicky replied. Fifi frowned, then sat up with her brother's cum inside of her, and continued to study until Mom finished preparing dinner.
