``Onii-chan, I'm here to play!'' said Mari, who was absorbed in the naughty play she'd just learned, and came today in her school uniform as well, ``Show me you're masturbating to your brother.'' When I say that, I feel embarrassed but put the rotor on her clitoris with the M-shaped opening, and she twitches and cums, and then uses the rotor to attack her, screwing her son into Mari's soaking wet pussy, and violently pistoning at high speed! Today too, I will cum inside this naughty tight man who is panting and cumming all the time! Well, no matter how many times I look at the contrast between the white semen flowing from her pussy and her dark blue knee socks, it's still erotic.