The matter that the naughty older sister was the devil of the brown big tits (related products of this title)

When I wake up one morning, an older sister with too voluptuous limbs with brown skin it was also made to the hero who was only child.
She takes off his underwear as a matter of course, while being upset, and she comes to blowjob.
Because my brother's semen belongs to my sister ......So I mouth it and suck it on my penis.
Is this a dream or some kind of delusion?――
The reality is that the person who calls himself an older sister-- was a demon -Succubus who had been summoned to this world by chance.
The devil, who calls himself Liviola, needs human life force to return to the original world ......So he munches his penis more violently in his mouth.
Let me drink plenty of semen ♪ So mouth, Reviola laughs.

ある朝目覚めると、一人っ子だった主人公に姉――それも褐色の肌を持つ肉感的すぎる肢体を持つ姉ができていた。
狼狽しつつも、さも当たり前のように彼の下着を脱がし、フェラチオしてくる彼女。
弟の精液は姉のものだから……そう口にし、ペニスにむしゃぶりついてくる。
これは夢か、それとも何かの妄想か――
その実態は、なんと姉――を名乗る者は偶然にこの世界に召喚されてしまった悪魔～サキュバスだったのだ。
レヴィオラと名乗るその悪魔は、元の世界に戻るために人間の生命力が必要だから……そう口にさらに激しくペニスをむしゃぶってくる。
たっぷり精液飲ませてちょうだい♪　そう口にし、レヴィオラはにんまり笑う。