I'm a videographer, weddings, etc...
About a year ago, a couple asked me if i would consider making a professional porn movie of them. I didn't tell my wife and accepted the job. I set up lights and sound equipment in their living room, then kitchen, then bedroom and worked for about 3-4 hours with a raging hardon. I came home and fucked my wife silly. I edited it together and it actually looked like a real porn movie. They thought it was awesome and showed some friends and I actually got another request.
It pays well, but I would probably do it for free.