Naraku/Kagome Story

[Guest amane]

I’m looking for a fic I read a while ago. In it, Kagome and Naraku wound up together and were traveling for some reason; I remember there being one scene in particular where they pretended they were brother and sister; however, that night, when Kagome offered to wash Naraku’s back, another guy wanted her to do the same for him, and neither could say anything because they were ‘just siblings’.