The sun had already begun to start setting, most kids were funneling out of the doors to the school in groups. Most went home, while others went to their after-school clubs. I waited around fifteen minutes after classes let out, giving time for the school to clear out before I headed up to the roof to meet Aika. I found her there, leaning against the railing and looking over the students leaving through the gate.

I came in and closed the door immediately behind me. This caught her attention instantly and her already wide smirk turned even wider when she saw me lock the door. "Hell yeah! I'm ready when you are." She turned around completely lifting up her skirt to reveal her purple thong, the bottom of which was a much darker color than the rest. "As you can see my kitty's swamped so I don't need a warm-up, but I certainly don't mind getting on my knees and choking down on that fat cock of yours." She wiped her mouth just as drool began escaping, her lustful perverted eyes trailing down to what was covered by my pants.

"Tempting, truly, but I called you here more for something else." I beckoned her closer, wanting her to stay away from the edge where people could see us. "No way?! I had to stuff tissue up my p-hole to stop myself from leaving a puddle behind on the seat, don't tell me now that I'm not at least getting to suck on your tip?!" She stammered over, hilariously distraught at the news.

"I think you'll like what I have to show you much more." I chuckled, pushing her along slightly until she was leaning with her back to the door. "I doubt it, I came here to see the God of all dicks, I don't think there's a single thing you could show me- HOLY DRAGON BALLS WHAT THE HELL ARE THOSE?!" I summoned my wings, unfurling them and letting them stretch out behind me. My dragon wings flapped instinctually, kicking up a gust that flipped up her skirt and exposed her panties to the world. Her glasses slid down her face revealing the full width of her eyes as she gaped in absolute shock and awe at me. Composed, I composed myself into a small gentle smile. "I'm a devil Aika."

"Holy balls! Yes! A million trillion quadrillion times yes!" Aika cheered, absolutely gushing as she leaned over with starry eyes at the chess piece in my hand.

I had run through the whole supernatural script. I told her of the various races and the existence of various types of magic. Then I explained devils, starting with the effects of the war and then the invention of the peerage system, and ending with what was supposed to be the hook. I told her of the increased life span, the strength increase, and the magic that became available. All in exchange for becoming my servant.

"Don't you want to think it over? You'll lose your humanity, and you'll be doing plenty of work under me."

"You're joking, right? I just hope you were being literal about that "working under you" part, you know, sexy assistant who wants a raise style?" She held me by my shoulders rocking me back and forth as she grinned like a madwoman.

"You'll have to work for that. I'm using a fairly valuable piece on you because I believe in your potential. I want you to prove you're worthy of it." I said seriously, putting on a stern expression to let her know I was entirely serious.

"So what I'm hearing is there's a way." She said, despite the atmosphere I tried to enforce.

Said atmosphere crumpled under my helpless sigh. "My primary sin is lust, just as I imagine yours is, be a good girl and I'll reward you accordingly."

I watched in real time as her eyes turned to hearts and even more unbelievably a trail of blood leaked from her nose. "Can I kiss you?" She asked in a daze.

"You'll have to work for that too." I held up a hand, blocking her lips with my palm.

"Ah come on! I don't get a freebie?" She said in a tone that was a mix of complaining and begging.

"A freebie?" I raised a brow in thought. "Hmm, maybe a taste would help motivate you."

"Hell yeah, it would!" She grew expectant in wait for whatever I would decide. I reached out, hands cupping her cheek. Her face grew red. I then ran my hand down further, thumb sliding down her nose and then landing on her slightly parted pink lips. Her tongue instinctually met it and I carried a bit of her saliva down her chin until it dried up on her neck.

I worked my way down slowly, the effects of [Incubus' Touch] making my touch all the more pleasurable. She shivered as I went over her breast. She lost her footing, leaning into me slightly to support her. Soon I was down to her navel, and she watched while panting heavily. She looked up to my eyes repeatedly, green gems begging me to go down a little more. I got there eventually, my hand creeping up under her skirt and rubbing along her thighs.

"Ahhh~." She trembled, head falling in my chest as pleasurable sensations flooded her spine.

Then I got to the cloth of her underwear, and I lightly traced it. She gripped my clothes tighter, standing on her tippy toes as my thumb lightly traced her folds over her panties. And then, I got to the top of it all, fingers just centimeters away from the most stimulated place in her entire body. Her fluids coated my middle finger and thumb as I pressed one into the other.

And then…

"No way," Aika said in awe, right before her eyes rolled back when I flicked her clit lightly, using a small bit of skill to bring the girl over the edge. Her head in my clothes muffled her moans, as even her arms gave out along with her legs and she fell to her ass on the floor.

"Haaah.. haahh, w-what was that." She panted rapidly, legs still twitching a bit. Her skirt flipped up, revealing her thighs drenched by her squirt and her ruined thong that begun loosely dripping downward.

"A taste." I reminded. "And you won't be getting another one until you earn it."

"R-right." She used the wall to pick herself up back to her feet. "Well, you sure know how to get a girl motivated, what do I gotta do Boss?" She saluted sillily.

"First things first." I uncrossed my arms, reaching into my vest pocket and pulling out the bishop piece once more. "I have to actually turn you, that process will put you to sleep."

"Will it hurt?" She asked, more curious than scared.

"Not in the slightest, I've heard it's euphoric actually. When you wake up you'll feel like you're omnipotent." I clarified. "Now, I'll take you back to your house and give you a chance to change out of your thong before I do it."

"Any chance I can get you to stay the night? My parents won't be back in town for months." That was certainly good to know.

I let her answer her own question, and she giggled as she stood properly and began walking to the door to the rooftop. "Have to earn that too huh?"

Her room was a lot cleaner than I had anticipated. There was only one vibrator she had left out to charge, and of course, the framed drawing of my cock she actually had on her nightstand. I sat on her made bed as I waited for her to finish with her bath, and I was surprised to see she had actually worn clothes instead of making a last-ditch effort to seduce me. I also took notice of her hair that was out of her usual pigtails and instead messily falling to her shoulders. I would've said she was slightly more attractive with that look, but the thought of holding her by her pigtails as she choked on my cock was just too hard to beat.

"I should mention," I said just as the thought came. "Devils tend to change physically in accordance with their desires, as well as their sin. You're sin clearly being lust means it'll be an even faster process for you."

"Holy shit! Does that mean I can upgrade my girls to Milf status?! Being a devil is fucking sweet!" She grabbed her chest in excitement, almost like she was expecting them to grow right then and there.

I stood and pulled down the cover of her blanket, enough that she could slide in. "I tell you that to say expect a bit of discomfort, and to go up a few sizes in every article of clothing over the next few weeks."

"Got it, pain is beauty and all that jazz." She sat at the edge of the bed and shifted until she was lying flat.

"Ready?" I asked, playing with the piece in my hand.

"Hell yeah, I am!" She energetically responded, not looking at all like she was anywhere close to falling asleep.

"Good, I'll come by early tomorrow to check in on you, after that I'll introduce you to the rest and tell you what you can expect from now on."

She nodded, watching as my hand slowly descended on her. I lightly pulled on the collar of her t-shirt.

She blushed as I just barely revealed her cleavage, and then held her breath when the piece slowly touched down on her chest.

"Welcome, Aika." My words and magic activated simultaneously, serving to begin the soul-binding process.

My bishop began to glow a deep red, it filled the room with its light. I felt the piece dissolve and become intangible, and then my magic power began draining. That was when things had stopped going as I expected.

"Ahhnnn~!" Aika moaned aloud, her body spasming and contorting. My magic power had diverged from its path into the bishop inside of her and instead went further down.

No, that was wrong to say. My power was being diverged, but it was the bishop inside her that was doing it. Like she was possessed, her legs lifted her hips into the air.

"AHHHH~!" She moaned louder, her clothes quite literally disintegrating off her body and allowing me sight into what was going on. Her legs were wide open, my magic poured straight down into her pelvis and just above her womb, right where a glowing heart-shaped symbol was manifesting.

The lines that composed the actual heart were thick all the way from the indent at the circular top and down to the pointed end that sat just above her twitching clit. From the outer parts of the heart, lines extended from the middle out curving in and out and forming a small pair of wings. From the bottom tip of the heart, curved lines faced inward and pointed to a much smaller and filled-in heart. Lastly, and most interesting of all was a small depiction of a bishop sitting dead center of the honest-to-Satan womb tattoo.

The pink glow died down until it faded completely and left a more permanent mixture of red, pink, and black all blended together and fading into the other. I noticed then that my power had stopped being siphoned, after a considerable amount had been drained, way more than I expected to use on just a single Bishop.

Soon, the red glow died down altogether leaving just the room light to cascade over the sight in front of me. An unconscious yet heavily breathing Aika, twitching repeatedly as her nipples stood erect, and her slim legs opened wide, tight pink pussy complete with a new womb tattoo leaking and squirting an ungodly amount of her vaginal fluid. Her blanket and sheets were soaked and discarded off her body from how her feet had been kicking uncontrollably earlier.

The process had worked. I knew because of the connection I felt to the bishop inside her. But, what the hell was up with all the extra shit. I know Ajuka had said irregular things do happen, but this?! I crouched down over the naked passed-out girl and rested my ear right over her left breast. Her heart pounded erratically but was slowly starting to calm down.

I left her room for a second and came back with a cup of water. Sitting on her bed, I picked her up and leaned her against my arm so I could slowly pour the water into her mouth. Naturally, her body swallowed and instantly worked to replenish much of the fluid she had just dispensed from her cunt. Only after I changed her soaked sheets and wiped down her legs and ass did I place her back in her bed, did one final check to make sure she was alright, turned off her room light, and then left the house, altogether.