Does anyone remember the name of this doujin?

It was a comedy doujin I remember of the Eientei gang going to a bouquet leaving Reisen alone to the house only for Lunarians and Junko to both arrive at Eientei as Reisen and Reisen II try to make them not even know they are there. I reeber liking it and yknow, wanna know what the name is. Does anyone here know what I'm talking about?