A brother masturbates while his sister is defenseless. His sister pretends not to notice and starts masturbating, and the brother gets even more excited as he reaches out to touch her, but she refuses to be touched. However, he gives in to his demands and the two of them start masturbating together, just looking at each other but not touching. The brother's dick and sister's pussy get closer to each other, excitedly, even though they say they're just looking. The distance between them shrinks to just 3cm...