My wife likes for the guy to be firm and controlling but not rough. She is ok with me being rough with her and at times request it from me. She has limits with others. One night on a hook up with a guy we meet at a swingers club it started out fine, he was controlling the action, fucking her hard but not overly rough. Then out of the blue, when they were switching positions, he grabbed her by her hair pulling her hard, trying to forsing her down to suck his cock and she screamed out for him to stop. He did and she told him that was too much. She explained that she was ok with a little forse but didn't want anything painful or overly forceful. He apologized and she allowed him to continue. A few minutes into fucking her again, he grabbed her throat hard with both hands, pushing down on her neck ...... her. I could see in her eyes she was afraid and not enjoying it. I stepped in and stopped him and asked him to leave. He got angry and we almost ended up fighting in the hotel room. It scared her and almost made her quit the lifestyle altogether. Just before that we had been talking about possibly allowing her to see guys without me occasionally. We hadn't decided yet if that was something we wanted to try but there was some discussion. After that, she never wanted to be alone with another guy without me there.