They stood in the door way for a little bit and then walk over and stood a couple of feet away from us, between us and the group we were watching. I ...eturned to fingering my wife’s pussy while we watched the two other couples. The two ladies were now bent over at the waist and their skirts pulled up. The men where fucking them from behind. My wife started to moan and she said she wanted some. She said it loud enough for the guy from the couple that was standing next to us turned and looked. I cleared my voice and said hi Charles is everything OK.Charles laughed down the phone and said yes it looks like everything is going great. I said what do you mean, Charles then said I have sent you a video message, check your mobile when you get to the bedroom and then call me back.I said I don't understand, Charles then said think about my CCTV and remote access. The boys were driving me wild and I could feel another orgasm starting to build deep in my stomach, but I still didn't fully. As she did so the penny dropped and I exclaimed 'this is one of those wife swopping parties.''What have you done' I said, 'you realize this is a wife swopping party,' Kerry started to protest and make out she didn't know and that it was as much my fault, but then she stopped and said 'sorry Bob I lied I did know Tom and Theresa explained when I first met them, but I've been feeling so horny since I came out with no pants, and all the men seem to be undressing me as they look at me, it really is. For a minute I wished I had worn that dress. Her eyes opened looking at me with a smile of realization, "It feels... natural" She said, "much better than the feeling of a dick against your body."I pulled her close kissing her again. "So you have been with men?" I asked, I had always been paranoid about STD's and I needed to know more about her sexual history.Her fingers ran though my hair, "Only the one and I was never comfortable with it, how many women have you been with?" Two," I said "one.