She's inside the house, an incredibly horny older sister, Mao Kurata. Smiling gently, she approaches me and quietly starts touching my cock, careful not to let my girlfriend—her younger sister—notice. Unable to make any noise, she teases me with an extremely slow, feather-light touch, barely grazing the skin, torturously dragging out the pleasure. Applying little pressure, she uses just the tips of her fingers, her toes, and the tip of her tongue to gradually deliver waves of sensation. This kind of stimulation is completely new—intensely pleasurable and unbelievably arousing.