So, before I download it, does the husband also partake in the action, or is this another 'wife fucks while hubby cheers' type game?
Too early to tell - the husband hasn't been introduced yet. He's away on military deployment, but the wife says he's "coming home tomorrow" and is leaving the military, so will be staying around. My personal speculation is that the hubby will also get involved, because it's hinted at, but it's not confirmed. It's suggested that he might start working at his buddy's gym, and that he's a good-looking man and there will be plenty of women at the gym for him to become the centre of attention.
All we know so far is what the friend gets up to, as she and her husband are already in the swinging lifestyle. She tells a story (we don't see any flashbacks etc.) of the previous night where
her and her husband picked up a guy in a bar and took him to their hotel room. The husband watched and directed as the guy eventually fucked the wife, and then the husband joined in and they both had her. In another scene, she gives a barman a blowjob (we do see this one) and has photos taken, saying her husband loves stuff like that.