Getting close but need a little push

Hi all

First, let me introduce my self and my wife
We are a married couple in the age of 40+ with a couple of kids. We have been married for 20 years now and have a strong relationship. Before I met my wife she was very active with men sexually and was a big flirt.
She has been very open in our relationship sexually and she knows about my interests in cuckolding for the last 5 years. I have told her that it is perfectly ok with me to have sex with other men if it is only sex and no feelings. She says that it is very good to know if anything interesting shows up.
Sadly she has gained a lot of extra weight during the marriages so she does not have the self-confidence required to act on this possibility.

For 2 years ago a past lover contacted her on messenger wanting to meet with her but nothing happened but they chatted for many months. She was very open about this for me and told me about her chat. I even was able to see what they were writing about which from time to time got sexual. Now they don’t chat anymore.
Another ex-has how contacted my wife and they have been chatting almost daily for the last month. He desperately wants her back even if he knows she is married and has told her that some secrets are ok. I know that she is not interested in going back to him. In the beginning, she told me about this but lately, she says that she is talking with some girlfriends however as I still can log in and see their chat I know that is not the case.

I still don’t think that she is interested in him but she is flatter that he wants her soo bad. I can see that she is smiling when she reads his message. I pretend that I don’t know that they are chatting so much.

I would, therefore, like to create some kind of quiz/ questionnaire where he rates her as a person but especially sexually. Somehow this should be sent to him so he hopefully would fill it out and send it to my wife.
I would like him to rate her compared with his other sex partners as I have the feeling she will get top scores at all point. Such quiz should start in the light end and get more and more sexual
I couple of ideas would be to rate the following:

• Her body (beast, eyes, ass and pussy)
• sex appeal
• Sexual performance in different skills
• How often he thinks of her sexually
• How bad he wants her back
• Would he like to have sex with her if nobody discovered it
• How sexy does he think she is now
• His best sexual memory with her.

This is just some quick points but I need a lot more questions and I hope you can send me some good ideas.
I also would like to get a recommendation on where online sites are good for this purpose.
This is not to trick her into anything as she already knows that she can do it if she wants but it is just a gentle help for her and especially him to get to the finish line.