My SO and I have recently been propositioned by another couple for a foursome. Although we are receptive to the idea, and my SO is very attracted to the other woman ( they have fooled around a little bit together before), it is the other guy that is the dealbreaker for us. My SO is not attracted to him at all, and to be honest the thought of him anywhere near us while naked really creeps me out. We are afraid of just saying no, because we don't want to hurt anyones feelings. Although she would have more fun with just the three of us, she doesn't want to exclude her husband for obvious reasons. So how do you go about letting them down easy, without hurting thier feelings? They are very good freinds, and are just starting to dip thier toes in the Swinger pool, so we dont want to be the ones that turn them off of the idea. Has anyone had a problem like this? Did it end badly? Should we just go for it anyways and see what happens, or is the this a good time to just tell the truth?