looking for a manga series

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Im trying to look for a name of a manga series that is kind of in the mindfuck category. One volume in particular that i remember is where a race of turtle like creatures that lived inside of the human body and the head of it would protrude out of the vagina of a lady... Another volume i remember is where this man likes to take pictures of getting head from all sorts of people/animals/etc

can anyone help me out?