Ryou had a sleepover and saw his friends - Issei and Tadahiro - kissing while they thought he was as...
LOVE how they all are so freely... slutty? Promiscuous? Exhibitionist? Being loyal with their partner but having sex in the same room every opportunity the have LMAO Such a good team these four, each couple gets turned on by the other and viceversa and it's so funny and kinda... wholesome and healthy? xD