Having a secret affair with my sister-in-law during a business trip, the house has a very large company, and the two siblings are also major shareholders in the company, so they often have to travel abroad for business. Being close to each other for a long time, the two siblings developed feelings for each other, and during that business trip, they could no longer hide their feelings. They confided in each other and came together. The sister-in-law is quite older, but she is extremely attractive and sexy, so it's understandable that her younger brother fell in love with her. Having a secret affair with my sister-in-law during the business trip.