Kagome looked suspiciously over the campsite, her chopsticks poised over her bowl of ramen. To the left of her sight sat human Inuyasha, looking pensive, moody, and very depressed. He clung onto the Tetsusiaga uncertainly. To the right sat Inuyasha the demon with a wide, smart aleck grin on his face. Behind him stood Sesshomaru, looking down at him with a vacant, transparent look to his eyes. Interesting.

Not finding anything to say yet, Kagome shrugged internally and bent down to resume eating her noodles. She could hear the slop, slop she was making keenly and anxiously she wiped the dribbles away from her chin. It was creepy how everyone was looking at her, while what they really should be watching was the split show in front her. Finally, regretfully, Kagome set down her noodles and cleared her throat.

"Er, um," she began painstakingly. "I think its time we figured out what happened here. I think I few ideas myself, but not certain." She twiddled the red scarf on the front of her uniform nervously. Everyone across the clearing was quiet for a minute so she continued. "Err, I think that we should begin with you, demon Inuyasha. How did you come out from hanyou Inuyasha?"

The demon across the clearing shrugged jauntily. "Dunno," he said flashing a smile. "The last thing this Inuyasha remembers..."

"Gods he sounds like an uneducated Sesshomaru," Kagome thought.

"…Is that when our hanyou took hold of the sword, our youkai energy began to be repulsed. I think it was because of the spell. When Kagome's miko energy reinforced our human side my absorption could not could not completed so I flew out. I think it had something to do with the collision of our energies. Both of us were trying to express themselves simultaneously, which was not possible."

"Oops!" said Kagome. "Sorry about that. But why were you repulsed?"

"Because of the barrier on the hilt," said Sesshomaru quietly finally breaking in. "It repulses all full demon energies so it repulsed Inuyasha's full demon aura. The question of importance is how he obtained a full demon side." He stepped forward importantly while regarding full demon Inuyasha carefully.

"It seems to me, little brother," said Sesshomaru carefully, "that a fox demon's powers have gotten mixed in with your scent. Especially since," he said narrowing his eyes scarily, "you said that the 'spell the kitsune put us under was enormously complex'." Tell me, Inuyasha, how was it then that you knew you had fallen prey to a kitsune?"

"Keh," said demon Inuyasha loftily. "You'd like to think I was possessed wouldn't you? But your accusation actually isn't that far off from the truth. I smelled the kitsune who cast the spell on me. That's how I knew it was her. But the separation wasn't entirely her doing. It was mine. You see, I have for so long wanted to come out, and when the human side of me lost control I absorbed the kitsune's power as my own. I used the Tetsusiaga to do so, and I absorbed some of its energy as well. It gave me power, that is until I had enough to exist on own. After that, it threw me off. Sadly, the Tetsusiaga is far less than what it was once was."

"You drained it dry didn't you, you bastard?" yelled human vehmonently. Irately, he ripped out the Tetsusiaga and surveyed it with a critical eye. However, since he was no longer demon he could not transform it to assess the damage. Instead, all he could do was grind his teeth to vent his growing frustration.

Sesshomaru ignored human Inuyasha and grimaced. "So you are saying you are nothing more than a conglomeration of powers. Much like Naraku," Sesshomaru stated scornfully before continuing. "Yet, I never would have thought that you would stand before me as a full demon, brother."

Full demon Inuyasha turned to look at Sesshomaru but didn't make a retort, whether friendly or ill. He just stood there surveying Sesshomaru while the Lord of the Western Lands did the same, in some sort of an odd staring contest. Finally, Sesshomaru whirled around and threw words over his shoulder to wind in the wind.

"If you ever wish to claim your share of Father's lands, come to my castle. In the meantime I advice that you finally dispose of those disgraceful humans."

Demon Inuyasha looked around the clearing carefully to meet everybody's wondering eyes but made no move to leave. Instead he merely kehed and flopped down beside Kagome much to human Inuyasha's dismay.

Miroku looked over at their "newest" companion and prepared to speak.

"So Kagome-sama," the monk began, "what ideas did you have about all this?"

Kagome sighed and picked Shippou to use as a soft squishy plaything. Demon Inuyasha and human Inuyasha both looked over with angry, jealous looks much to Shippo's dismay.

"It's just that I was thinking of what my biology textbook says about genetics that's all. I've always wondered why Inuyasha is able to change into a human on the new moon. That means that he must have at least two whole sets of chromosomes that are human. Since he is a hybrid, he would have to have two sets of demon genes to match. That kind of would make him a polyploid."

"A polyploid?" squeaked Shippo temporarily forgetting his danger for his big mouth. "What's that Kagome?" Then the little fox tyke suddenly remembered his danger and ran to hide under her arm. Kagome hugged him tighter and smiled gently at him.

"A polyploid is when something has double the usual number of genes. Normally for humans it isn't a good thing but for some creatures it is possible. At least it is for plants.

"But Inuyasha isn't a plant," put in Sango in a tone that pleaded for explanation. Kagome nodded.

"I know Sango. But since Inuyasha is part demon, maybe his magical side of him works differently than we humans do."

Sango nodded knowledgeably, "That's true. After all, demons are able to possess people and occupy the same space as they do no matter what their size. Sometimes demons don't possess a physical body at all but they still manage to inflict harm on people. And even more rarely humans can become demons themselves like Naraku did."

Kagome continued on thoughtfully. "So if Inuyasha has youkai blood there's no reason why he shouldn't have been able to possess a body made of more than one gene set. It's kind of weird though. It kind of makes him like more than one person. If it wasn't for weird things like cross-over events and random assortment I would have guessed that human Inuyasha was a girl now since women only contribute X chromosomes. But I guess his father gave him to Y's." She darted a glance over at Inuyasha to find Miroku looking at his human companion very closely with a pitying expression on his face.

"Keh. Don't worry about it monk," said human Inuyasha forcefully with confidence coming back into his voice. "I checked already so don't you dare put me on your 'to-be-stroked' list."

"Wouldn't dream of it my friend," said Miroku with his hand up. "Actually I was thinking if I couldn't help you find some sort of poison. Or at least a jar of sake. You would need it my friend to cope with such a loss."

"Spare me," said human Inuyasha angrily.

Hm, is this terrible and horrible? I find it a bit offensive myself but I wrote it anyway. I'll get back to more clean, loving, and funny humor after this but I don't know how soon I can update. I might be gone for a while. But please review!