I read a SessKagome fanfic a while back but I can't find it anymore. It was set after the battle with Naraku. Kagome either leaves Inuyasha because of Kikyou or he dies. Kagome tends to Sesshoumaru's wounds in a small cave. After a while, he wakes up, and the first thing he sees is Kagome flaring her powers so other youkai would have second thoughts about attacking them. Sesshoumaru and Kagome gets to know each other a little, but after a few days when Kagome was going to take a bath/get water, some men came and violated her. Sesshoumaru finds her and takes her to this little clearing that is untouched by humans, so that she could heal. Then he calls Jaken, who appears with little Rin and Ah-Un.

That's all I can remember, but please tell me if you have any leads!!