My wife's younger sister, Iori-chan, ran away from home after fighting with her husband. She is my wife's little sister and like a sister to me too. But there's something off about Iori-chan lately. It seems she was jealous of how much in love my wife and I are, and suddenly started wearing revealing clothes that emphasize her breasts. And... is she deliberately shaking them? They're quite large… At first, I wasn't interested, but it was so obvious, and those constantly shaking breasts made me lose my reason…
