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Cain had few people in his life he truly cared for and that truly cared for him. Therefore, he was very possessive of those few he allowed into his collection. Of that exclusive collection, Kagome was no exception. She shared his bed, would be his wife, and would be the mother of his children. In short, she was his. That was why he became infuriated when others tried to take what took him forever to attain. Men knew Kagome's relation to him, yet they still tried seducing her way from him. She didn't help at all by giving them the attention they so craved and only he deserved. However, Cain had ways of reminding both parties to whom Kagome belonged. It was easy enough. Each night behind closed doors Cain easily brought all of Kagome's attention back to him and received more than any other man would ever receive from his faithful kitten. Still, Cain could not leave it at that. He was known as the Earl of Poison and had a reputation that made scaring off rivals simple. One meeting with these suitors assured their eyes would never stay to what was his again. Kagome knew of his forceful convincing and scolded him for his foolishness for both knew she would never leave him. Even so, she found the whole thing somewhat endearing. Cain did not care if she found him ridiculous though because as long was she was in his arms each night he could ignore her laughing.
Kagome knew Cain was possessive to a fault, but he did not that she too possessed this same trait. After her failed relationship with Inuyasha, she was determined to keep what was hers. So it angered her to no end when women threw themselves at Cain and he did little to nothing to stop their advances. He flirted with women shamelessly when all knew she was with him. Riff and Merry could attest to many cups, furniture, and clothes ruined because they happened to be in the way of Kagome when she found out of the latest flirtations or when she heard Cain went out again. So she found a way to deal with the issue. Fight fire with fire. Kagome harmlessly flirted with men at parties and gatherings in innocent enough ways as to not raise alarm among others but to anger her possessive Cain to no ends. She continued this until Cain stepped in and "reminded her to whom she belonged." The possession nonsense did not bother her like it did with Koga because not only was it her aim, but also Kagome knew she was really the one in control. Let Cain believe what he wanted as long as she got what she wanted. She felt some what bad for the unsuspecting men who received Cain's threats, but really the were simply pawns as long as Cain did not actually hurt them. So Kagome just continued to act innocent and allowed Cain to think he was in control. As long as he was with her, Kagome could really care less whom belonged to whom.
So I was going to make this two chapters but I figured people would appreciate this more. Hope people like this. Came into my head late at night when I couldn't fall asleep. I realize this might not have to be with Cain. I thought about changing it to Kurama (YYH) but since there are so many of those pairings I'd keep it Cain. I'm going to update other stories somewhat soon. I was rereading them and became inspired again. Thanks again to my somewhat small group of readers and even smaller group of reviewers! You guys inspire me. I know I'm not that great but I'm glad there are some people who like what I write. Well hope people continue to read and ask others to write more crossovers like this. Thanks again!