Not sure how I would ever react to blood from needle play or similar.. having been whipped/flogged to the point of blood, I found the 'bleeding aspect' mildly arousing compared to the rest of the scene and it definitely was not a turn off.

My biggest turn on however, was being bitten and having blood drawn from his bite.. the innate animalness of it, of him asserting his Dominance over me in such a raw, primal form, turned me on greatly.

Pagan, the small paragraph you've written, hinting at what you meant certainly has my curiosity and I wouldnt mind reading more. Turn me off? Not in the least.

This of course is just a small snippet in the affirmative from the D/s community out there.

Duped