32F/34M

So my wife and I are extremely new to the LS. We just went to our very first swingers party last night and we had a great time. The venue was great, the people were great we learned alot, met several new friends, got hit on lots of times, had some drinks. Most of the night went perfect. The only problem we ran into was near the end of our night we wanted to find a third to have some threesome play. The venue had playrooms to utilize and we wanted to try it out. We did not find a suitable third so we decided to just have sex with each other in one of the rooms. First she performed oral on me in a common area/dungeon area and that was fun but then we moved into a private room. Once we were alone I suddenly had a very hard time maintaining an erection. Obviously this was upsetting and embarrassing. Now I know it was our first party and my mind was racing but obviously it was a bit disappointing. Especially considering it was just us and we didn’t even include others in play. The rooms are not super private, they are right next to the dance floor and just blocked with a curtain but i don’t think it was a privacy issue. I was fine with her giving me oral in front of other people after all.

At this point im trying really hard to process all this information and understand myself better because there is ALOT of future play i look forward too but i really want to avoid another performance problem. Can any of you guys give me some insight into what may or may not have happened? What can i do to be in the right headspace? Any techniques or advice would be greatly appreciated.