Looking for a story that was on literotica, about a couple trying swinging for the first time, he went upstairs, the other wife was there, he was sick, they didn't do Anything, but the other halves of the two couple (she was hesitant) thought they had, story runs from there , a will they / won't they about the other two halves, looked all over and didn't find it, can you guys and gals help?