MIDV-679 Her twin sister tempts me with an overly predatory approach, Takihyuga Hikari

They look alike but have completely opposite personalities!? My beloved girlfriend has an older sister. They have the same face and figure, but there's a decisive difference between them! She can seduce her younger sister's boyfriend without batting an eye, with that predatory mindset. Of course, I'm the target too! Hidden from my girlfriend, we engage in adult kisses with our tongues entwined, hand jobs during spare time! Sex behind her back, doing whatever I want! If this keeps up, I'll think of her sister even when having sex with my girlfriend! But the older sister's predatory seductions never stop!