Bad Prince Honey Party summary:

From EPS: *Let's start this lewd party! Model Akira and celebrity Kaito held a limousine party for their inseparable partner-in-crime, Kunimitsu's birthday celebration. When Akira said "Have fun with whoever you want", he was pushed down by Kunimitsu who said, "I want to mess you up."…After moving to the hotel, Kaito also joined for a threesome…?!*