When I was about 14-15 my boyfriend at the time tried to take things to fast and force himself on me and I said no but he didn't listen so like many other women here-I took action and gave him a knee to his groin and an elbow to the face. Let's just say relationship didn't last much longer after that.
However, things are different with my fiance- we have a clear understanding with eachother and know when enough really means enough. Even though I have said no because the pleasure was a bit intense but he kept going, which was alright and made me have even more pleasure but- he knew ahead of time that it was ok because I told him before hand to keep going until I told him to stop & that it was enough. I was ok with that personally because I knew if I really wanted him to stop what he was doing, he would stop otherwise...he knows the consequences. But I think the main issue here is that a lot of men get confused between what is acceptable and what is not because of the types of role playing or whatever you want to call it that some of us like to play. If you are into being dominated then that is fine but you both need to communicate beforehand and there needs to be an equal level of understanding that when one person says enough or no and it is not part of the play then it's over. period. Even if you are not into playing like that-controlling the other person or dominating them- you should still be clear before things get steamy what is and isnt acceptable. We cant assume everyone is on the same level. And by no means am I excusing a man not listening when you say no. NO MEANS NO, NO OTHER OPTION!
*sorry if this doesn't make much sense-Being tired but unable to sleep does bad things to my communication skills.