This sounds like one by Chie... not sure of the title though. On my phone at work so yeah.

EDIT BY WICCAN: Perhaps "Dramatic!" by Chie? Rated T, link here: http://www.dokuga.com/fanfiction/story/5576/1

In the fiction, Sesshoumaru, Kagome and Inuyasha all appear as actors working under the creator of Inuyasha, Rumiko Takahashi. They play a scene where they compete in Toga's tomb over the Tetsusaiga.
(Animation S01 E07 Show down! Sesshoumaru Vs Tetsusaiga) It's not accurate, but I think Sesshoumaru and Kagome were lovers in the fiction; Because they can't concentrate on acting until the end, but they kiss passionately and then get the director(Rumiko)'s mediation. The moment they kissed was originally the scene where Sesshy had to kill Kagome in the plot. If you know that fanfic, plz, tell me subject ...

YES THATS RIGHT!! Now I remember. I read part of this fiction in DA but couldn't remember the writer's pen name and title. Thank you for your kind help! I hope you are happy today.

Glad you found it! I did write a one shot originally titled Re-take (rated T) but since it wasn't enough to get the plot bunny out of my head, Dramatic! happened.