I want to help, This is my input:
One word "THREESOME"
The classic resource for this is Steve P's white tiger tantra. That's the technique used in the book the game.
What I don't understand is
"advice on how to keep our wish list"
basically enjoy the sex while it lasts.
Because when your wife finds out, she will bend you over and fuck your arse harder than you ever fucked your mistress.
I'm hoping that your wife takes your home and half of all your money. Not because of
morality grounds
but because I have a dark sense of humour and I think it will be funny. Also I want your mistress' boyfriend to kick your teeth in.
LOL
I hope my advice is helpful.
I also think you are a retarded cunt