ENM challenges mmff

My wife and I indulge in multiple sexual dynamics with other partners. With one particular couple I experience what feels like anxiety, I become disconnected from my body, over focussed on not loosing my hard on and before i know it my erection suffers and then I absolutely lose it. This does not happen in other dynamics and I’m able to stay present and focussed on the fun rather than my own performance. I think it might have something to do with how attracted I am to this particular couple and how much I want to impress them and perform and I can’t seem to break this cycle. What can I do to stay present when playing with this couple, I feel like the stakes are really high?