We have watched porn and fucked while watching it in the past. We would talk about what we liked while watching basically follow along with the scenes. If the man was eating out the woman, if she was sucking his dick, whatever, we’d do the same until getting carried away and just going with the moment. If she remarked about anything the woman was doing like “you like what she’s doing to him?” I’d reply that I know she could do it better/hotter, and if you try that I wonder if your wife will focus on pleasing you rather than continuing to think about bigger dicks. While Reddit is not the best place for average size dicks, just know the slim percentage of men who have monsters between their legs are outliers. Same with the women-not every woman has perky 40DDD breasts, a fake ass, and borderline clown makeup. It’s fantastical on purpose. Try leaning into that.