I walked behind my sister, her face buried in the hair on the back of her neck, and took a deep breath to fill my nose. The smell of Yueling shampoo was full of stimulation of my brain and made me feel the whole body hot. Yueling I called my sister's name in a low voice, and my body was rising. I walked through Yueling's armpits and grabbed her breasts. She was indeed not wearing underwear. Through the thin pajama cloth, I felt the softness of her breasts and the bulge of her nipples. I couldn't help but rub it up and down. Yueling didn't expect my movement to be so sudden. As soon as I entered the door, she was shocked by the fact that she was shaking. Her body shook, and her hands subconsciously grabbed my hand, trying to pull my hand away from her chest.