While I was waiting for my step-sister to help me do my homework, I wanted to jerk off. I lay on her bed and slowly masturbated my dick. I got excited and started jerking off more intensely. I got out of bed and started jerking my dick hard in front of her mirror, imagining how she sucked me on her knees. When I heard her going up to her room, I started jerking off even faster to cum. I felt a very pleasant orgasm and shot a huge amount of cum onto her mirror. It was a great cumshot with pleasant sensations