We have played occasionally in the lifestyle the past 8yrs, mostly with me present (but no always) in setups like MMF threesomes or with another couple. My "role" expectation in the beginning was more to be an equal participants, but I've learned this was quite hard for me, as I simply get ED issues watching my wife having sex with other men or women.

Even our first experience, which was supposed to be a MMF threesome, I badly underperformed. I think I was chocked to see her with another man's cuck in her hand, mouth and pussy, and especially to realize how much bigger and harder he was compared to me. After he fucked and spanked her alone, I was supposed to get onto my wife, and I could hardly get erect, and when I entered her, I came almost instantly... and then the party was over for me, but not for them.

I've experienced similar cases afterwards, both with other MMF setups and the 2 times we have bene with couples. And it ends up with me being more viewing or helping out with my tongue than penetrating anyone.

I even tried viagra and other ED pills, they gave me some confidence and strength but in the end it was way less than expected.

I'm fit, and normally I have no issues with erection or other medical constraints, but when my wife is enjoying other men, I really struggle

Do other cucks and Bulls experience the same with cucks lacking stamina?