Celestial X Grimoire (DXD Celestial Grimoire)

I eventually got out of bed, pulling out of my sister to do so, and put some clothes on before leaving my room in order to have a shower, taking a set of my school clothes with me.

After a moment's thought, I decided to lock the door behind me, I didn't really have time to have steamy shower sex with Tomoko. Even though it would be really hot.

So I took off my dirty clothes and grabbed a towel before placing it along with the school clothes that I was going to wear today on the nearby bench.

With that, I hopped into the shower and made sure to clean myself rather thoroughly, scrubbing the dried cum and the juices from both Tomoko and Melusine off of my crotch and thighs, along with washing my hair, getting dried and dressed, brushing my teeth, all of the routine stuff that somebody does in the bathroom.

Then, just for a bit of fun, I decided to shoot myself with a soapy 'cleaning' Zap, which surprisingly enough actually worked.

As I got cleaned yet again, I felt a sudden influx of knowledge as the bookmarked page of the Celestial Grimoire opened up a bit and gave me an increased level of control over my Reinforcement Magecraft.

In an instant, I was suddenly able to do a lot more with it, such as reinforce non-physical things like… the effect of a spell, or the sharpness of an object. Along with the sheer strength of my reinforcement growing far stronger than it previously was.

Not only that, I also gained the ability to learn the past of an object as I analyzed it with my magic, making it far easier to use Gradation Air… plus I was now passively reinforcing both my body and anything that I would touch.

This was certainly a surprise, but I wasn't going to get mad over it. This was way too useful to me, after all.

With that done, I left the bathroom and watched as Tomoko ran in in order to have her own shower.

I quickly put my dirty clothes in the laundry, and walked down the stairs where I saw that mom was sitting down and reading the newspaper.

"Good morning mom." I said with a smile, as she looked over to me for a moment.

Then she gave me a small nod before going back to reading the news, as I walked past her… just out of the corner of my eye, I saw that instead of the news, she was reading some sort of book inside of the newspaper. But I couldn't really tell what it was, only that it was causing her to blush.

And then I went into the kitchen and started to cook up some simple eggs and toast for breakfast, as I tried to think of any sort of plan for today…

Looking at the clock, I saw that I had around an hour, maybe more before I had to get to school. So I decided that it was the perfect time to get started on making my lunch… along with the cookies that I promised to make for Koneko.

I would much prefer to give them to her at school, rather than have her follow me home for them. I didn't want her to perform some sort of surveillance magic on the house after all.

So to start with, I put some rice into the rice cooker and got to work on the preparations for the bento box that I was going to make for myself, Tomoko, Shitori-san… and Koneko, as I knew that she wouldn't just be satisfied with the cookies.

The beast would want all that she could get, and I was honestly happy to challenge myself against the endless gaping abyss that was her stomach.

And so for that, I decided that it would be a good idea to use my newfound Reinforcement Magecraft on the ingredients of the bento, along with the chocolate chip cookie dough that I was currently putting into the oven to bake.

While they were cooking, I took care to carefully construct the four bentos, a smile making its way to my face as I sort of zoned out and just went with the motions of crafting the perfect lunch.

Eventually, I found that had to wait for everything to finish cooking, so I patiently stood around, waiting for everything to be finished.

As I did so, I noticed that mom was leaning down to pick up something that she'd dropped- looking at the floor I saw it was the book that she was reading.

'Mother X Son X Daughter Romance 3' was the title of the book, and I couldn't help but pause at that- what the hell was she reading?

Looking back at my mother, I saw that she was looking at me rather oddly, her rear end sticking out beneath the sinfully tight black dress that she was wearing.

It was a damn enticing sight, that was for sure. I just wanted to take a bite out of her ass. Which was a weird thing to want, considering she was my mom and all…

"A-ah, Ryuuji please don't-" Whatever she was going to say was interrupted when I instinctively reared my hand back, and brought the full force of my outstretched palm onto the barely covered flesh of her left ass cheek, "Ahn!~"

My mother let out a long and sensual moan, as I slapped my hand against her meaty cheek, before her eyes widened and she quickly picked up her book and ran away as fast as she possibly could.

…I wanted to follow after her, but I was distracted from doing so by the dinging of the rice cooker- and not wanting the rice to burn, I went to check on that instead.

Seeing that it was doing well, I looked up the stairs and saw that mom wasn't there- she likely went to hide away in her room, so I figured that she wanted to be left alone.

And since I was also all alone now, I could do something else… namely, practice my skeleton transformation.

After all, I had gained that Bone Demon transformation, what would it look like if I stacked it on top of my original Lich-like transformation?

Better yet, what did it even actually look like? I walked over to my bedroom and grabbed a mirror, taking care not to wake up the snoring Melsine from her slumber, before transforming into my Bone Demon form, I felt a sudden sense of power well up within my body, as my limbs became covered in this bone-like armor with horns growing out of the sides of my head.

"Holy shit I look terrifying." I said, my voice becoming surprisingly deeper, not in the way that the undead transformation was, but as if my voice was naturally more baritone than normal.

Then, while still looking at myself in the mirror, I decided to layer in my undead transformation as well, to see just what I would look like… and I certainly wasn't disappointed.

Looking at my reflection, I saw that I still had the cowl that the normal undead transformation would wear, and looked far more like a normal skeletal skull, but my horns had become a crimson red, and my eye sockets glowed a menacing mixture of red and purple.

But then there was my torso, which looked like a normal human torso, though one that was absolutely covered in muscles upon muscles with an exposed ribcage, the same could be said for my arms in this form.

My arms looked as though they were in tatters, the flesh having been peeled from the body, but I knew that they were still rather strong and durable, so at least there was no loss in power. My legs were mostly the same, with them still being human-like, but looking as if they were torn to shreds.

All in all it was an odd yet intimidating appearance, as I could definitely see possible enemies that I would face fleeing in terror from this form.

With that, I dropped the transformations returning to my normal form, and went back into the kitchen where I ensured that everything was properly packed for the day.

As I was packing the bags, I noticed Tomoko walking down the stairs in her uniform, and watched as she quickly made herself a bowl of cereal for breakfast as she looked over to me… before blushing and looking away.

Huh, that was kind of odd, but she was probably just remembering last night, and all that sort of stuff.

"H-hey, nii-chan?" Tomoko spoke up awkwardly, causing me to look over to her… only to see that she had a pregnancy test clutched in her hand. And oh god, it was positive!

My eyes swiftly widened in shock as I looked at my sister- my pregnant sister, she was- I got my sister pregnant… oh fuck she's going to be a teen mom. Oh fuck I was going to be a teenage dad.

"I- what, what do I do, what are we going to do, nii-chan?" Tomoko asked after a moment, a terrified look on her face, "I- I'm not good enough to be a mom… I'm, I'm oh no I'm going to be a horrible mom."

I noticed tears brimming in her eyes, and in that moment I knew what I had to do. She needed someone to comfort her, after all.

"Listen, Tomoko…" I started, as I looked at my sister, she seemed to be tearing up in fear for the future, "Nobody- nobody starts off as good parents. Do you think that Mom and Dad knew what they were going to do instantly? No, we might… we might screw up a few times, we might even fail- but we're going to be the best parents to this kid that we can be, alright?"

"I- alright, Ryuu-nii, yeah…" She sniffled a bit, looking at me, "Does- does that mean that you're not gonna, you're not gonna run away?"

"What? Why, why would I ever run away Tomoko-chan?" I asked, as I placed a hand on top of her head, "We're in this together, that is… if you'll have me?"

"Of course, of course I'll have you nii-chan! I'm gonna have you and never let go!" Tomoko said with a wobbly grin, as she latched onto my arm.

"Great, great… now, Tomoko-chan?" I said, getting her attention as I gave her a teasing little grin, "Are we still going to go ahead with that little plan you mentioned yesterday?"

"Plan- what plan…" She trailed off, and my grin grew wider, because of course she wasn't actually being serious about that, my sister was a degenerate but even she must have had limits-, "Yes! We're going to groom our little baby into your adoring mewling little fuckpet! Great idea, Ryuuji-kun! I almost forgot about that!"

Fuck! Shit, no. Oh fuck… what have I done?

Thankfully, I was saved from that potentially horrible conversation by the dinging of the oven signifying that the cookies were done.

So I quickly excused myself from my sister's grasp, as having to listen to her mutter about how she was going to 'raise our darling baby with a mixture of mommy's milk and daddy's sperm' was just getting way too uncomfortable to deal with.

Walking over to the oven, I opened it up and took the tray of cookies out, not even noticing the heat of the tray, even though it should have burned my hands.

It probably didn't burn me because of my Reinforcement Magecraft, or some other thing that I had… but once the cookies were out, I placed them on the bench to cool off.

And I almost instantly had to stop my sister from grabbing one with a quick smack to her grabby little hand.

"Ah! Nii-chan, come on! I want a, I mean… uh, the- uh, the baby might need the nutrients!" Tomoko pleaded, her attempt to convince me to give her a cookie falling on deaf ears.

"No, Tomoko. The baby doesn't need these, you just want them." I said, before looking at her pouting expression, "…How about this, wait until they've cooled off and you can have one, alright?"

"Yes! Thank you nii-chan, they smell so damn good!" Tomoko said, as she did a stupid little victory dance, before returning to her cereal.

She then proceeded to somehow miss the bowl with her spoon, and ended up over extending herself- to the point that she somehow slipped while in the chair, and ended up face first in her cereal, before running off to wash her face.

Oh fuck… that was going to be the mother of my child.

While I waited for Tomoko to wash the cereal and milk out of her hair, I moved over to the living room and sat on the couch.

And thankfully, I was sitting down when I gained a sudden influx of knowledge on both Gradation Air- or uh, Projection and Formalcraft. Sort of like what happened yesterday with my Reinforcement Magecraft.

Okay so first up was… Gradation Air, as all of a sudden I had gained a sort of mastery of this magecraft, granting me the ability to make far more complex and complicated projections- provided I've seen them used in action.

But then there were the extra abilities that were given to me, such as the ability to enchant any projected object with my own spells, or the ability to simply look at an object and be able to create a projection of it.

There were limits to either ability though, of course. The first newfound ability which I called Enchanted Projections needed me to know a lot of spells in order to be as versatile as it could potentially be.

And then there was the latter, which I decided to call Visual Projection. It let me copy damn near anything with a look… but if I didn't see a certain ability of the item that I was projecting, then I wouldn't be able to copy it, I'd need to get my hands on the item in order to properly copy it.

Then there was also the fact that no matter what, my copies would always be just a bit weaker than the original, which I figured was a fair enough trade off for this overpowered bullshit ability.

And I could see why they worked like that, as they were essentially a crystallized form of magical energy- a sword that I projected wouldn't have any of the forging techniques or the true history that went into it, and well… I wasn't a damn blacksmith so it'd be next to impossible to replicate that.

Now that I thought about it though, could I copy Sacred Gears with my Gradation Air? I didn't really know the answer to that- mostly because I assumed that it wouldn't work… but if it did, then that would be utterly terrifying, and I should probably figure that out sooner or later.

I would have to get my hands on a Sacred Gear to even start with that, and that would be pretty hard to do as I didn't think they would have a physical form… maybe my sister's one would work, but I had no idea what it was. What if it was too powerful for me to project and I ended up getting hurt due to the strain of trying to replicate it? Or what if doing this would hurt or kill Tomko?

After a few moments, I decided to stop thinking about that- I had a lot more stuff to focus on, like the entirely new form of Magecraft that I had gotten my hands on.

It was called Alteration, and well it allowed me to alter the world with my magic, like some alchemy 'turn lead into gold' bullshit.

From what I could tell, it was rather slow and time consuming, as it would take ten minutes to turn a small lead ingot into a gold one, and the time it took would grow exponentially if I attempted to alter some sort of magical item.

But with some training it could become a truly terrifying source of magic, just imagining turning the oxygen around an enemy's limbs into stone or something like that to instantly bind them… well that just sounded awesome.

All in all though, just the stuff that I gained from my newfound mastery of Gradation Air was great. This would definitely come in handy for me in the future.

Now it was onto the Formalcraft stuff that I had suddenly gained… and just envisioning it, I couldn't help but smile.

Firstly, my mastery of the basics of Formalcraft had grown by leaps and bounds, as I had all of these ideas for rituals and the reagents needed for them to work.

As long as I had the proper reagents needed and the stars aligned for my purposes, I could potentially create any number of ritual… if I get lucky, I might be able to get to the point of becoming a High Class combatant.

Then there were the two extra abilities I had gained from this sheer mastery of Formalcraft. They weren't all that useful in combat, but they would be great for my ritualistic purposes.

For the first one, which I called… Ritualistic Rationing, it rather simply lets me make the most of a ritual using the smallest amount of reagents for it, with no cost to the strength of the ritual itself.

So basically it was a cost-cutting ability that theoretically meant that I could do more rituals than I originally should have been able to do.

Then there was the second ability granted that I was granted which I decided would be called Reagent Substitution.

What it did was pretty simple with just the name itself, I was able to use lesser materials for a higher tier of ritual… though there was a decent cost to the effectiveness of the ritual if I did that.

But it meant that I could do higher levels of rituals at a far lower cost, and with Ritualistic Rationing on top of that? Well, I could make a lot of rituals at nearly no cost, due to the inherent cheapness of the materials that I would be using.

Then there was the newfound ability that I had gained from the sheer mastery of Formalcraft, one that would allow me to craft something called a… Mystic Code.

From what I could tell, a Mystic Code was basically an enchanted object, utilizing the basic concepts of Formalcraft it lets me imbue my own magical energies into an object and enchant them.

With this, I could do any number of things, from making fireproof clothing, to enchanting a sword with the ability to fire beams of holy energy.

This newfound ability didn't come without limits, of course, the quality of the Mystic Code would be directly proportional to the quality of the object that I was 'enchanting'.

So for instance, if I enchanted my normal school clothes, I could only give it one or two minor abilities, like slash or fire resistance.

But if I turned the Bonewood Staff into a Mystic Code, well then I could do far much more for it…

I could already see a lot of potential in Mystic Codes, as while there were limits to it… I could outfit Tomoko in something that could easily protect her- her and our unborn child.

"Nii-chan, I'm back! Let's go or else we'll be late for school." Tomoko said with a beautiful smile as she walked down the stairs, her hair looking a lot better now that it wasn't covered in bits of cereal and milk.

"…Alright then." I said happily, as I went into the kitchen and made sure to put the cookies into a container and placed that into my bag before I grabbed it, and just like that… I was off to school, and my pregnant sister happily walked next to me.

_____

Sorry about the update taking longer than usual, I was pretty busy today.