Fantasy of wife being a hotwife

Mbhotwife

Couple
I've had this fantasy for a very long time but I have no idea how to approach this.

My wife does know about my fantasy to some extent and even roleplays when we have sex but nothing more.
I was hoping to start slow by posting sexy pictures of her but she wants no part in that.

The idea of someone flirting and seducing my wife to fuck at a hotel room is one of my biggest fantasies