The stones deal is explained in a webisode. The swapping is viewed as a conjugal visits, so the volunteers all sign waivers allowing for that kind of stuff.
Doesn't stop it from being weird. Well, I can't say it was
weird, since the last episode I watched was "Light." But it certainly sounds
I really need to go back and watch the rest of SGU one of these days. I did see potential in what I did watch, but I didn't keep up with it for some reason. And I'm curious to see just how much it did improve in Season Two.