Enjoy!
Brotherly bond
He remembered he was there the day Ryuukotsusei became too much of a threat. Recalling Kagome's words they decided to take him on as a pack, a joint effort. Touga and Sesshoumaru fought as one unit, something he had not seen of the dogs before, and he and Hiroki fought as another. He had not transformed into his true form since his mate had died and he sat there in the Western courtyard howling for his loss, it felt surprisingly good to let the beast that resided in him out once more and partake in bloodshed. The dragon did not stand a chance against all of them combined, working as a team was the best quality a true warrior could have.
The dragon was strong, and if Touga had tried to take him on himself as he would have had to do if Kagome had not entered their lives causing the whole of Japan to unite, he may not have survived his injuries. This was also the day that they met Inuyasha, Inutaisho's second son, a hanyou, adorable as he was loud, all they could think about was the future connection he was meant to have, or maybe that would change now he was going to have with their miko. Another thing on their minds was the apparent hatred he was meant to receive from his older brother; they wondered how Sesshoumaru would act towards the new addition to the household.
They needn't have worried; Kagome had taught him to be compassionate as she had taught his father to take into account the feelings of another. Having grown close to a human himself, Sesshoumaru could hardly diminish his father's love for Izayoi, or the pup that love had created. From one look the dog adored his little brother with every fibre in his being and vowed to take good care of him. From that moment forth whenever he visited the Western Lands the two brothers were together, it was almost impossible for him to imagine them even squabbling. They were like their own separate entity, speaking in code, Inuyasha only ever doing what Sesshoumaru told him to, the only one who ever managed to enter their world was his Shippou.
Oh yes, he was well aware of the dreams Shippou was having, and Inuyasha was plagued by nightmares of the 'other' too. There were many things he was glad were never going to come about now that they'd been warned, like Sesshoumaru trying to kill his brother, and he could honestly say he was glad Touga lived. There were some things he liked the idea of though, such as the adventures they had, as dangerous a life as his son led in the other, it sounded from Kagome's stories and Shippou's dreams almost worthwhile. He was glad one thing that did not change from the other to the reality was the brotherly bond his son formed with the sons of the West.