interesting discussion. to me it depends on Your definition of advantage. my Master takes advantage of the fact that i will do whatever He tells me to. i take advantage of the fact the He DOES tell me to do things. He takes advantage of the fact that my body is available to Him for whatever He wants to do to it. i take advantage of the fact that He will do things to it. it is also to my advantage that the things He does to it give me pleasure incidentally while He gets pleasure. now thats A LOT of adantages as far as i can see