***Note***
Asterion is a Minotaur, which is like a Centaur, but instead of his lower body being that of a horse, his lower body is instead that of a bull.
Prologue
During the late Bronze Age, well over a millennium before the birth of Christ, the Minoan king on Crete held the Athenian king to ransom. Every nine years the Athenian king sent as tribute seven male youths and a like number of female virgins, the cream of Athenian society, to Knossos on Crete. Once on Crete the Athenian youths were fed into the dark heart of the Labyrinth and left to wander to their doom. At the heart of the massive labyrinth lay the dreaded Minotaur Asterion, unnatural son of the Minoan king's wife and a bull.
One year the Athenian king sent his own son Theseus as part of the sacrifice. Theseus was determined to finally stop the slaughter, and to this end he was aided by Ariadne, daughter of the Minoan king, half sister to Asterion, and High Priestess of the Labyrinth. Theseus slew the Minotaur, and he and Ariadne become lovers. Soon, Theseus had seeded her womb and she bore a child to him. A few days before the child of their union had been born, Theseus departed for Athens, faltering in decision to leave Ariadne behind. And so, like the old saying goes, hell hath no fury like a woman scorned...
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Ariadne washed herself carefully, wincing at the pain between her legs. She reached into the chest containing her clothes and drew forth a deep red flounced skit, which she bound tightly over her soft stomach. She stayed topless, so as to better entice Asterion and promote their union. She moaned as her hands moved to her nipples, rubbing circles around them until they had hardened. She pulled on them, twisting them, and finally slipped a hand under her short, transparent skirt. The color may have been deep, but the material was gauzy and transparent, and the skirt barely even fell to the top of her thighs, giving off a tantalizing view of her wet pussy lips. The skirt was slit down both sides, all the way, so it tied together at the top. She painted her lips red and then sat down on the soft bed to await his arrival. She didn't have to wait long.
Asterion arrived in a whirl, dazed and confused, but when he saw his younger sister of barely eighteen sitting on the bed, he felt his cock instantly grow hard. She wore a short, transparent skirt, which offered him a great view of her creamy thighs. She wore nothing on top, leaving her heavy breasts and hard nipples exposed to the air.