SDMF-018 The brother became jealous when he discovered that his sister was having sex with her lover

Since I was a child, I have shared a room with my sister, it must have been 16 years now. One day, I discovered my sister kissing a strange boy, both of them in bed, preparing to make love to each other. I immediately went in and made her boyfriend run away. I went crazy with jealous thoughts in my head, so I pressed her down and did something unforgivable to her. Even though she kept telling me to wear a condom, because of jealousy, I didn't listen. After that day, I often forced her to make love to me no matter how much she refused. And finally my mother found out, I had to move to a separate room, but I decided to move out and live alone. But before leaving, I knew her feelings for me, she loved me and didn't want me to leave her...