I think it is a pretty interesting idea. I agree with you, most masterXslave roleplays bore me because they always turn into one on one. This however, is really cool. Would they also have jobs such as cooking, cleaning, driving, and etc? If so that would be interesting. I think it would work as well because if you think about it many animals have enhanced senses that would make the job perfect for them. I think it's a wonderful idea! Maybe you could make a rule that a person can only roleplay up to two characters (a master and a slave) but I'm very interested.