It really depends with us. My husband and I share something possibly somewhat unique. He and I have been together long enough that he knows when no means yes and he knows when no means NO. He can tell when I am pleading him to stop because I like it so much or because I really want him to stop. Now as we get into more intense scenes this may have to change but for now we are ok and I haven't really found anything to say NO to yet anyway lol.
Becky