Threesome to share wife so she can get satisfied

Is there anybody thought of a threesome so wife can get satisfied, it’s been crossing my mind because it’s not fair to her I can’t get hard, I don’t know how I would handle it , but watching vids, the woman seems to enjoy it, maybe that wit get it going.
I try to talk to her about it but she don’t say much, but she is open to it at times.
I may be making a mistake but I really don’t care anymore because I’m tired of letting her down.
It would be nice to feel like a man again

IME, I found watching my wife play with another guy a big turn on. That said, it’s a discussion you both need to have and feel comfortable about. Hard to really know how you’ll feel until the time comes. It would also be important to set some rules so that if it gets too uncomfortable for either of you, you can stop.