Looking for advice on how to progress from fantasy stage. Wife is at the point where she will talk about how much she wants other cock when we have sex. She REALLY gets into it, telling me how she wants to suck and fuck them while I watch them use her. I can tell she is into it as her pussy gets SOAKING wet whenever we roleplay this during sex. Much wetter than with any other type of fantasy. We watch a lot of MFM/cuck porn together, and she does on her own too, but we are stuck at this point. She gets uncomfortable thinking about moving on to trying something in real life. I respect her comfort level but would love to have things progress, any advice on next steps?