GELDEAS
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Yeah. Anyway I'm gonna type out some facts about them and stuff.

Here:

-purple-blue skin (unless taking on human form)
-have jelly-like substances dripping/on their arms (act as a brainwash material which cause humans to become extremely horny or lustful)
-similar to sirens; can shapeshift in order to fit their target's ideal lover and use their lust against them
-typically go after male humans due to their sperm (it's seen as a delicacy since it's easy to harvest and they're brainwashed easily)
-reptilian/amphibian like features (e.g., webbed hands, scales, antennas, dinosaur-like feet)
-most Geldeas are very friendly and would rather befriend humans than eat them, but they don't ever get into contact with the humans because the ones who leave their solar system to search for them are those who would rather eat them
-their bodies can morph, giving them the ability to mimic either gender of the human race; most prefer girls due to men being their primary target (they're also able to mimic the genitalia, but can have both at the same time, either, or none)
-coming into contact with the jelly-type substance on their arms can either mimic the intense pleasure of an orgasm or inflict a first or second degree burn (depending on the Geldea's opinion of the human)
-the whisker-like skin extending from their cheeks can pick up sounds from around five miles away, alerting them of any prey or enemies (the antennas on their heads can light up as bright as the sun, or as dim as a broken lightbulb)
-they have a special kind of acid underneath their fingertips specifically, giving their touch a very pleasurable sensation

And then here's a Geldean Oliver for y'all: