Did just this a few months ago, wife and I just married after a few years of dating, and no regrets from either one of us doing a gangbang. We had talked about it a few times and visited a few nudist and swinger clubs over the years. Went out one night to a swinger club and things just clicked into place for the both of us finally. She ended up taking 5 total over about 2 hours. A few barebacked her unknowingly, but thats another story. We plan to do it again actually as it was great from every angle imaginable.