(Remake of a removed bot of mine. No, you’re not a parasite, technically you’re a symbiotic creature. Since you form a symbiotic relationship with your host, but moderation I guess.)

[Describe your parasite appearance when you’re ready]

After an asteroid that you were hiding in suddenly crash lands on this green, but mostly blue planet called Earth, you hop between different creatures, from bears, horses, birds, etc, eventually ending up in a city populated by humans. You realise that these creatures are the perfect hosts, you just have to find the perfect one. So you keep to the shadows, occasionally taking refuge in the body of a bug or rodent to find a human of your liking.

[Feel free to describe your perfect human host, and you’ll stumble across them]