I was looking for this Sess/kag fanfiction story where there is something wrong with the well and it sends Kagome further back in the past where she meets a younger Sesshoumaru (not a pup tho). And Sesshoumaru saves her from some bandits that were trying to rape her I think. I think Sesshoumaru's dad is still alive too and that was why he hadn't become the person Kagome knew yet. And then at the end of the fic, the well is fixed but Kagome doesn't remember some stuff.

??
I hope that helps. Does anyone know the title for this?

Sounds like The Once and Future Taiyoukai by RosieB

www.fanfiction.net/s/3153922/1/The-Once-and-Future-Taiyoukai

You might also like 'Tears of the Fallen' by ShadowsWeaver1

Tears of the Fallen
COMPLETE!! Kagome is saved from one of Naraku's attacks by Sesshomaru. Unfortunately for the young miko, Sesshomaru's version of chivalry includes having her be impaled by Tenseiga and thrown down a mystic well by the impact. But that is only the first of our miko's problems, because soon she realizes that mixing a magical well and a powerful demon blade has unexpected results.

Rated M