Sincuba

Sincuba is perhaps the most well known subspecies of sincubus. Sincuba are common across the entirety of Narcissium, and usually choose to integrate themselves into human society.

Appearance
Sincuba appear as idealised humans, their bodies well-muscled and proportioned, and their faces symmetrical and smouldering. However, several things set them apart from their human prey:


 * Brightly coloured skin in red, purple, or blue tones,
 * Colourful irises which frequently show multiple colours in a single eye,
 * Two horns which erupt from their skull symmetrically on either side and project forward and up over their foreheads. In rare cases, sincuba may have four or even six horns. The size of these horns varies, but is commonly larger in males, and
 * A thin, whip-like tail tipped with a pointed flare.

Male incuba also have lizard-like double-jointed legs.

Behaviour
Sincuba feed on sexual energy, which they draw from their victim at the time of sexual climax. While older sincuba may feed from the same victim on many occasions, young and inexperienced sincuba usually kill their victims upon feeding. In the case that an experienced sincuba leaves their prey alive, it experiences a shortened lifespan. Sincuba who devote themselves to fine-tuning their control are able to take as little as a few days from a victim's life. However, the less energy that is consumed, the more frequently a sincuba must feed.

Trivia

 * Humans known colloquially as "feeders" are fetishists or people stricken with a mental illness who willingly give their lives to feed sincuba. This is a criminal offence for both the victim and the sincuba, so these "feeders" often attempt to seduce succuba under the influence of drugs such as alcohol or cocaine
 * Silver Rose is a sincuba with meretrix blood