Sister-in-law, please don't... do porn anymore!

My wife's older sister, although not beautiful in the face, has a perfect figure. I don't know much about her, but one thing I'm sure of is that she is very seductive. One time when she visited our house, she dressed provocatively and made seductive gestures towards me.

Eventually, I couldn't resist anymore. I'm a man, how could I endure her seductive actions? So, I had to apologize to my wife in my heart, I had to satisfy my long-suppressed desires whenever I saw her by fucking her...