You've got to be careful about who you let watch you, that much is obvious. I think that will be your main issue. And until you can find some people to have sex in front of, you could always use a camera. You don't have to be recording, just the fact there's a camera pointing at you could have a similar effect. Of course, recording and making your own tapes is also fun but nobody's saying you need to upload them anywhere. Just make sure nobody else finds them
Sex clubs could be your best bet, unless you invite some swingers over or go out with swingers. You've got to be very careful about everybody's comfort zones though.