Symbiotic Nanno-Sheath

The latest fetish with young people and quite a few older people is pretending that you are another animal, so a Neo-Prussian Empire has created a new type of nanno-tex retractable sheath with several different styles, however what they haven’t told people is that the sheath is sentient and is actually an intelligent symbiote that has a habit of taken the person over while they are sleeping and performing spy duties.

The styles include cow, tiger, horse, bunny, dog, fox, lizard.