Nagato's oral cavity, pharynx, oesophagus, all of it has been transformed for genitals, such that the penis is able to go smoothly in and out without even activating the gag reflex! Hooray for alien powers!Aaaaaah! Nagato's throat-pussy feels too good! Oooh, cumming!! I'm cumming!!!!Aaah... Na-Nagato, taking it all the way in... Taste good? Does it taste good? You're such a glutton...