Posted originally on the Archive_of_Our_Own at https://archiveofourown.org/
works/440108.
  Rating:
      Explicit
  Archive Warning:
      Choose_Not_To_Use_Archive_Warnings, Underage
  Category:
      F/M
  Fandom:
      InuYasha_-_A_Feudal_Fairy_Tale
  Relationship:
      Kohaku/Sango_(InuYasha)
  Character:
      Kohaku_(InuYasha), Sango_(InuYasha)
  Additional Tags:
      Incest, Sibling_Incest, First_Time
  Stats:
      Published: 2009-07-14 Words: 244
****** Bakkheia ******
by Ganger_(Aiffe)
Summary
     Today he becomes a man.
Notes
     Written for iyhedonism's theme, "Quickie."
     The title has a double-meaning—the obvious one is the liberating
     anything-goes revelry of the Roman god Bacchus, the less-obvious one
     is the Roman god Liber (assimilated with Bacchus), whose festival
     Liberalia was the coming-of-age ceremony for boys.
Kohaku's hands shook as he put on his armor. Today he would fight his first
battle.

“Today you become a man,” Sango said. She caught his hand at the straps to his
armor. “Not yet,” she said, and began undoing his work. “The youkai taijiya do
not send virgin sacrifices into battle.”

“Aneue,” Kohaku said. “I did not think it would be you.”

Sango stroked his cheek gently, and—she can't kiss me; that would be weird—but
she did, and her lips were soft and warm despite thoughts like she is my
sister.

She lost no time stripping off their clothes, and bore him down on the futon.
Kohaku stared at her pert, bare breasts, simultaneously terrified and unable to
believe his luck. He cupped one hesitantly, as if asking permission and
expecting reproach, but as none came, moved on to kneading and kissing them.

He soon felt Sango mounting him, unbelievably wet and hot and smooth around
him, and he gasped, delirious with pleasure. He grabbed her tightly and bit her
breast, and these things went unreprimanded. There are no rules, he thought. He
ran a hand down her flank and fingered her asshole. Nothing is forbidden today.

Kohaku came fast, and he felt like it was over before it began. “Get ready,”
Sango told him, “for your first battle.” She dressed quickly and left.

Kohaku sat there a moment, reeling, just breathing. His hands shook as he put
on his armor.
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