RCT-737 - Forbidden Bus Trip with My Hot 40s Aunt

I bought this because the aunt-nephew dynamic seemed like a fresh, interesting pattern, but honestly, it was a letdown. I've quite liked this series featuring Riri Koda as the host and have bought several in the past. There was only one couple doing the real thing in the open-air bath... I thought the other two couples would be stimulated and start too, but they just watched. It was a real buzzkill when they went back to their rooms and started separately. They should have had everyone doing it at the same time, both in the bath and in the rooms. And what's up with Riri Koda messing up her line and calling him 'son!' and just letting it slide? Did the staff not notice, or did they just not cut it? Is Riri Koda just going through the motions because she always does the mother-son pattern? It would have been excellent if there had been a three-couple simultaneous play, so it's a shame.