Kissing is part of the overall experience. To not kiss would leave a part of it behind. I think I maybe understand the "no kissing" rule in that it reserves something intimate for a couple that is just theirs, but honestly, sex is pretty intimate too. I almost think I would rather soft swap with kissing than full swap without. Leaving something out at the start of the night would skew the rest of the evening.
Chip
BTW, if the preceding doesn't make sense to you, don't worry. I was merely thinking out loud ....
