I have a Liberator throw, but I don't think I'd take it camping unless I had all the space in the world and I knew I could keep it safe and clean. They're too expensive to risk getting all muddy or losing somewhere. Definitely bring a tarp of some kind if you're planning to set it down in the middle of a clearing somewhere.
If it were me, I'd just lay down a dirty t-shirt to protect my sleeping bag, tent, or picnic blanket. I do love my Liberator throw, but when I think of camping, I think of bringing the least amount of STUFF possible. For sex, I'd stick to the necessary birth control methods, my favorite lube, and a small and trusted vibrator (with a fresh charge or an extra battery).