As said above, my wife found a chat I’d had on Reddit (I’d forgotten about it) with a likeminded husband. Basically the chat explicitly detailed a MFM threesome we’d had years ago with a friend. The hottest experience of my life too. But I used explicit language and graphic detail in my story, exaggerated a bit (such as referring to her as “our sex toy”) and did lean a bit derogatory (?) at times. Point is, it wasn’t anywhere near the vanilla and private sex we’ve had for years now and def not the best way to find out your partner likes seeing you getting fucked. She did not react well and still hasn’t given her thoughts on it. Oh well, maybe it’s better for the relationship as a fantasy anyway.