A/N: Saku(Sakyu) x Iku(Inkyu) Basu.

Plot: Basucest. Hot Incest. R-18.

What they were doing was wrong...

It was forbidden by nature...

But the Basu Brothers did not care...

For a human...The sinful nature is when a person commits a sin and lets a demon related to that sin into the persons life. The person who lets it in is the only person who can rid of the demon...

But then again...The Basu Brothers are supernatural beings like Oko said they were.

But they kept it a secret...

Iku: Ah...Brother...Hmm...

Saku: Do you like it...?

Saku continues to twist his fingers inside his brother's hole while his other hand stroke his dick.

Iku: I-I...Ah! AH!

Saku: I asked you a question. Do. You. Like. It?

Iku: Y-Yes! Onii-sama! I love it!

Saku smirked at Iku's obedience. It proves that Saku was the more dominant twin.

Iku was always submissive. There were times he tries to be the seme to over throw Saku.

But there was just one problem with that...

For a vampire, Iku really did had a small dick...

How embarrassing...

So Saku always makes sure that Iku gets punishment for trying to outsmart him.

Iku: Brother...Please...Stop treasing me...

Saku: Hmm...I don't know Iku...You have been a bit rebellious lately. Maybe I should punish you even more...

Iku: N-No! I promise I'll be good for now on! Just please! Fuck me now!

Saku chuckles demonically before grabbing his brother and pushed the dick inside of him.

Iku lets out a silent scream as Saku begin to thrust inside of him.

Iku could've swore he could see stars now everytime Saku fucks him. He moans, cries, and begs for more. So his older twin couldn't deny his wishes.

People say incest is wrong...

That he and his brother shouldn't be doing this...

But he and his brother didn't care...

All he wanted right now was for his brother to continue fucking him until he feels himself drowning in pleasure.

Iku: S-Saku!

Saku: That's right Otouto. Let's cum together~!

And thank what they did. They both let out a moan as they both came at the exact same time until they both fell on the bed exhausted. Saku then kisses Iku as the younger twin hugs him.

Incest may be sinful and wrong to bother people.

But love is love.

So the Basu Brothers do not care about the morals of life and how society works.

It was them aganist the world.

But they're together and that was important.

Iku: Love you...

Saku: Love you too...

Being brothers and lovers by sinful nature...