A fantastic start to a story.  It is definately rare to find a submissive Sesshomaru, and I sometimes wish it appeared more often.  The one thing that I like to your story is the desire to be submissive, instead of being forced upon the person (which agitates me at times).  A lot of stories have a strong Kagome that Sesshomaru forces (dominance, rape, etc) into being submissive, and it gets redundant.  It is rare to find a story that has a sub-Sesshomaru with an actual desire (and acts upon that desire) to serve Kagome.  Please continue the story, for I would like to see where it leads! :)

This is delicious. Please continue!