Simultaneous stimulation of the internal and external portio erogenous zones! Her soft, slim body arches back and screams in ecstasy! The portio erogenous zone is said to be the most sensitive spot for women, and when stimulated, it brings about intense sexual pleasure, happiness, and orgasm! Mio Ichijo! She breaks down from the unprecedented pleasure of the portio! A huge cock piston stimulates the internal portio deep inside her vagina and grinds her pubic bone! The pleasure of the fist stimulating the external portio makes her drool and her hair gets all messy as she goes crazy in ecstasy!