Whilst it is a freedom of choice that everyone has and I respect that freedom, in my opinion people take part in group sex because there is something lacking in their private sex lives and they are either trying to mask the problem or they are looking for excitment. I think it is totally normal for a couple to experiment with a 3some but regular swinging is different.
Having said that, i think it is a fetish, like S&M and shoes etc and everyone is different.
If you like it, enjoy - as long as both parties are doing it for the same reason.
