Yikes, we were going at it missionary style (well his legs were on my shoulders) and he had a hot orgasm and started saying "Ow!" etc., I thought it was hot and pressed harder into him. Bad idea! He was frightened and it totally killed the mood. I've been kicking myself over it since. My excited reaction to his "ow"s reminded me of an ex-girlfriend with whom I learned to do that, but she was a self-abusive mess and liked being hurt a little, and that is another story. Right now we get into some very fun dom/sub stuff, and switch it around. We are no strangers to pain in you know, consensual exciting ways. It just brought me down to realize that I had acted on some weird impulse, and rubbed him quite the wrong way. We tried that again the next day and he seems to be all right, but I am still shaken. Any advice?