The Morning After the Contract
The morning meal began with a grotesque, engorged phallus buried deep inside my pussy.
I had assumed it was a joke, naturally.
“Runi, say ah.”
“Ah… ahhh…”
I sat on my sister’s lap, taking it in quietly, with her cock pushed all the way to the root.
Beyond the absurdity of the situation, I had every right to refuse.
Yet, strangely enough, the voice that should have been screaming to push this situation away wouldn't come out.
“Delicious, isn't it?”
“Ugh, yes… hngh…♡ D-don’t… move…”
“Oh my, Runi, you’re so cute taking it like that, my cock just twitched.”
Why on earth was I sitting here so calmly, eating breakfast while impaled on her member?
The Seal of Lust on my body wasn't glowing, which meant no magic was currently influencing me.
“Runi, I’m going to shift my posture a bit.”
—*Squish!*
“Hgeheek♥”
Her slightest movement was the movement of the cock, and my pussy received it with agonizing sensitivity.
“Don’t focus on the pleasure, focus on eating.”
“Th-then… you could just… pull it out…”
“If you ask me to pull it out, I will.”
“Do I really have to say it?!”
“Yes, if you don’t say it, I won’t know. And communication is important between lovers.”
Lovers?
Could she and I really be…?
“Don’t say such ridiculous things. I’ve never entered into a romantic relationship with a demon.”
“Is that so? Then why are you taking my cock so well?”
The cold tone didn't last long.
My current situation was a picture that didn't match my words at all.
I could only let out a deep, heavy sigh.
Ever since I discovered she was a demon, these inexplicable situations had repeated themselves over and over.
“Sister, I have one question.”
“What is it?”
“Does a demon’s bodily fluid… have… aphrodisiac effects?”
“Heh, you’re only asking that now?”
That single sentence provided a strange sense of relief.
I had been worried that I was actually enjoying being fucked like a dog, but it was just the influence of the demon’s fluids.
Yes, there was no way I could actually enjoy something like that.
Sweat, tears, saliva, and semen.
All of it was included in those fluids.
Considering my womb had been filled to the brim with demonic seed, the aphrodisiac effect must have been incredibly potent.
“You look like you’re smiling subtly.”
“Huh? No. I’m not.”
“Runi, my cock is starting to ache.”
“A-and?”
“I need to cum one more time.”
Suddenly, she grabbed my pelvis and stood up from the chair.
Before I knew it, I was leaning against the table, my hips thrust far back.
—*Thwack!*
“Hgyaaaaaang♥”
Her cock violently assaulted the entrance of my womb.
“Let’s finish breakfast after I cum one more time.”
—*Thwack! Thwack-thwack-thwack! Thwack!*
“Hgeek♥ Huhiiiit♥ I-it’s… too… fast…♡”
After being ravished one more time, she sat me back on her lap just as she said, and finished feeding me.
“Hngh…♡”
The problem was that the cock, still filled with semen, was still inside me.
The erection had softened, so there wasn't that feeling of being completely stuffed, but the foreign sensation remained.
“You take it so well, even with something the size of an arm inside you.”
“Hnguuuuh…♡”
Every time I moved, it felt like the semen filling my womb would spill out, but her cock acted as a plug, holding it all inside.
“Haa… huut…♡”
If this continued, I would end up living my life impaled on her cock, and my pussy would be ruined forever.
My pride would not allow me to be toyed with unilaterally by a familiar, especially a demon.
“Huu…”
I steadied my breathing and focused my mana.
“I command you.”
As I recited the first line of the incantation, the Soul Mark on the back of my hand flared with light.
“My words are truth, and shall be law.”
It was the summoning incantation that allowed me to impose absolute obedience on a contracted familiar.
—*Clang!*
Immediately, several chains manifested from thin air, wrapping around her neck, both arms, and both legs.
I stumbled, struggling with all my might to pull the cock that had reached so deep inside me.
“Ugh…♡”
—*Splatter!*
As I stood on my own two feet, thick, viscous semen poured out of my pussy.
“Runi, what is this?”
“It’s to stop… a contracted familiar from moving as it pleases.”
Was it because my womb was too full of her seed?
Or was it because her cock had been inside me for too long?
My lower abdomen was throbbing and trembling like crazy.
My pussy felt empty, gaping wide and twitching.
My body was not in a normal state.
“Pfft! Puhahahaha!”
Suddenly, her laughter echoed through the room.
“Wh-what’s so funny…? You need to understand. Right now, I am using the summoning…”
“Runi, did you forget what kind of demon I am?”
“No matter how high-ranking a demon you are, the summoning incantation is absolute.”
“Then go ahead. Try it.”
It was a clumsy provocation.
Any familiar would be bound by it.
Wait, did I even recite the contract text properly after I summoned her?
“Why? Did you forget something?”
Come to think of it, I had been so flustered by her overwhelming power that I hadn't recited the contract text at all.
The fact that her movements had been interfered with by the summoning incantation was only because she had been summoned by my mana.
If that was the case, I needed to start with the contract text.
—*Crack! Clang!*
“A stupid Runi is cute, too.”
She easily shattered the chains summoned by the incantation, stepped closer, and stroked my chin.
“It’s quite amusing to watch you try to recite the contract text while my semen is still leaking out of your pussy.”
“Ugh…”
“The contract you tried to make with me never properly formed. But the contract I made with you? That one is perfectly intact.”
I was filled with questions at her incomprehensible words, but pushing her away was my priority.
The moment I tried to slap her hand away and put some distance between us—
“Huyaaaang♥”
Suddenly, my lower abdomen throbbed violently, pulsing with heat.
Then, my womb began to burn.
“Wh-what is this…?”
The Seal of Lust was emitting a light so intense it couldn't be compared to any other moment.
—*Click!*
A collar appeared from nowhere and snapped around my neck.
—*Jingle!*
She held the chain leash, smiling as if she found the whole thing interesting.
“How does it feel?”
“Wh-what… did you do to me… Hngyaaaat♡”
“That seal means the contract with the demon has been established.”
“Huheaat♡”
“The Soul Mark means Runi is the contractor and I am the contractee. The Seal of Lust means I am the contractor, and Runi is the contractee.”
Does that mean… I am her familiar?
“But, this isn't my preference. I wouldn't treat someone I love like this.”
The sensation of the collar around my neck didn't last long.
She walked over slowly, stood before me, and pulled me into her arms.
“Mmph…”
My head was buried in her impossibly large breasts.
“Runi, don’t make me angry. I want to cherish you.”
How did my life end up so twisted?
The time I have ahead of me feels like it will be just as nightmarish as the things I see when I close my eyes.
Knowing I was in such a desperate situation, I felt no vitality in my body.
As long as this seal remained on my lower abdomen, my daily life would be getting fucked by her cock like a bitch.
“Haa…”
I lay on the bed, staring blankly at the ceiling.
It was truly a situation that could only result in sighs.
How was I supposed to explain this to my acquaintances, and how could I possibly tell my parents, who were expecting so much from me?
My head felt like it was going to explode.
“Runi, do you want to go on a date with me?”
She entered the room after finishing the dishes, offering a bright, cheerful suggestion.
A date with a demon who ravished me at every opportunity?
That was ridiculous.
“If you want to go out, go by yourself.”
“Don’t be like that. Let’s go on a date. When you’re not feeling well, it’s good to get out and about.”
My emotions surged up in an instant.
The fact that she was acting as if she had no idea who was responsible for my current state made my anger boil over.
“Let go of me.”
When she tried to take my hand, I slapped it away roughly.
“Runi…”
Until now, I could have told myself I was just playing along with a demon’s prank.
But now that I knew the truth, I couldn't take anything lightly anymore.
I was in a position where I had to be toyed with by a familiar, a demon, without being able to resist at all.
What on earth did I do to deserve this kind of karma?
“Runi, if you had recited the contract text to the end, this wouldn't have happened.”
“Ugh…”
“You didn't recite the contract text. Isn't that your fault?”
“Fine, let’s say that’s my fault. But why was a demon summoned as *my* familiar in the first place?”
“That’s something I don’t know either. And if a demon was summoned, you should have recited the contract text more thoroughly.”
She looked down at me with cold eyes, her tone devoid of any warmth, piercing my heart.
As she said, everything was my fault.
I had been careless, and careless again.
That was why my anger flared up even more.
—*Chu!*
The moment I bit my lip in frustration at myself, soft lips brushed against my cheek.
“Sister…?”
She had returned to her human form and was holding out her hand to me.
Her human form was the sister who had been my pillar of support for so long.
Strangely enough, seeing her in her human form calmed my chaotic mind and heart.
It was the same right now.
“Let’s go on a date and clear your head.”
“No. Forget it.”
“Hmm… Hup!”
“Whoa!”
I refused until the end, but she grabbed my hand roughly and dragged me out of the house.