I disagree, I think that's everything you could have ever hoped for from this. Like I said in my post, I know it's an absolute 0% chance my wife would ever cheat with a stranger from a wrong number dick pic, you're just trying to gage reaction. If that's real that wife was clearly interested to keep responding, how often would you keep responding to a random wrong number?
If real it piqued her interest a little for sure. LondonCuck, did your wife ever tell you about this? I wouldn't definitely follow up again, and the longer she doesn't say anything to you the better.