GVG-445 - Older sister's erotic sex education, correcting her brother's twisted desires

The premise is a sister teaching her sexually inexperienced brother, but Yuna actually looks younger than him, which makes the setup feel a bit off. If they were going for a 'big sister' fetish, I think there should have been more POV camera work from the brother's perspective, but it's mostly shot from a third-party view. The acts aren't anything special either; it's just a work to enjoy the dynamic with Yuna, who plays the sweet older sister.