When I went to her house to play, I happened to meet her older sister. One day, I witnessed her masturbating, and we started a "naughty" relationship. Gradually, our actions escalated, and we even had sex! What's more, she seduced me with dirty talk, saying things like "make me pregnant" and "cum deep inside my vagina". How could I resist the temptation of a woman who is more beautiful and erotic than my girlfriend, and who even lets me cum inside her...!?