Depends on what type of porn. If it's an OF type thing that I can be involved in, sure. I even bought a DSLR with the foolish idea that my spouse with BDD would one day be willing to let me film us.

My biggest concerns with a professional actor would be A) STDs, and B) the damage that's being done to their body from the hard pounding over several hours it requires to shoot a scene. A lesser concern is they probably wouldn't be up to having real sex with me for a day or two after shooting, but that ties into B

I wouldn't have a jealousy issue, though.