For a good release form, just try Google and adapt it until you're happy with the phrasing. Basically, you want absolute indemnity from everything. If you're in any doubt, I suggest you send a PM to Pornlaw (poster here). Michael's an industry lawyer and I'm sure if you ask him real nice, he'll offer free advice on the board (maybe!).

In fact, it might be something he'd want to cover on his show.

If your client is happy with you as male talent, then go for it. Get yourself tested (and don't work with anyone who isn't up to date with their tests) and away you go.

I still recommend trying swingers first. That way, you'll only have to concentrate on filming and can get decent angles, plus the couples will play better together because they know which buttons to press on each other. And they'll be way cheaper than LA pro talent.