Bravestarr, I really see your point here. I was thinking the same way, until I met some people on this forum, which do such things and I realized that's it's not as bad as I thought... They explained to me that not all of those people are limitlessly giving away their partners. Some actually have "rules". And even if I'm still not sure I'd share my girl with someone... with these rules, I can at least imagine doing it.
1) ALL have to be present during it. Having sex behind the partner's back is no....
2) The person with whom the partner is shared is not hooked up via photo gallery of LPSG... it's not "look for a hottie to do it with". It must be a friend. A good one... Only a select few can receive this "honor"
3) The friend whom I'd share my partner with knows my partner too. So yeah, we all know each other well and me and my partner both talk with over .... so that we both agree we want this and THEN we invite that firned of ours into bed.
I really wouldn't share my woman with a random guy she saw on LPSG with a huge cock, that's a big No-No, but with a good friend... maybe...