my husband is into S&M which I have known about before we got married. it seemed okay then, but i never really liked it. the whole tying him up thing, inflicting pain and such just gets tiresome after a while. now it seems that we just can't have normal sex. it has to involve S&M and me using sex toys on him. i want to make him happy and i'm glad he enjoys it -- but i would just like normal sex. and what does they whole S&M thing mean? psychologically what is behind it? why do people get turned on by that?