I think it would be foolish to fear what others will say, ever. Life is way too short to entertain negative assholes. The men who love her will jump right in to fuck her every way that they can. It most assuredly will happen. Put up some pictures of the lady so I can start lusting for her.
I hope you really enjoy the enhancement of your lives that will be inevitable once you get your feet wet. Have fun and , if you want to talk, get in touch for a fresh perspective.
I suggest you let her know that you know, and make her start fucking someone else. You do not want some smooth talking cuntsman to steal your wife, so you have to show her other guys, and make sure the first guy knows it.