The tall, delicate mature woman 'Shirakawa Kasei' attempts to develop the 'cervix' for the first time! First, to confirm the location of the cervix at the deepest part of the vagina, she inserts a dildo. Before long, she's already feeling good and reaches orgasm, then thrusts it even deeper! She lets out moans and contorts her face, but like an addict, she keeps pistoning and orgasms again. As the man's long fingers reach the cervix and finger her there, Shirakawa leaks urine and convulses! When her cervix is pinched and shaken vigorously, she gasps for breath, writhes, thrashes wildly, and faints. On all fours, as he thrusts his fingers even deeper, Shirakawa arches her back and shudders, no longer in her right mind! Before the huge cock is even inserted, she's already panting, her body craving it. Finally, as the huge cock is inserted and he slowly presses on her lower abdomen with his hand, Shirakawa, with an anxious expression, orgasms in an instant! In the all-fours position, her body screams from the new pleasure and she collapses from the elbows. Shirakawa, shaken to orgasm while sobbing from the cervix, is hyperventilating and already in a state of surrender... The impending 'pleasure experience' terrifies her, her entire body controlled from the cervix！！
