How to really get started

I’m looking for suggestions to make my wife more interested in really trying it out for real. We have talked about it in the bedroom a lot, sometimes it turns her on, sometimes it does not. I have showed her one or two cuckold porno videos and the last one I showed her seemed to really turn her on.

Any recommendations whether videos or just ways to really encourage in a non pressure way to try to real thing? Or just really hot videos that your wife specifically likes?