VEZZ-012 - Sister-in-law's Forbidden Seduction

Shiho and Reira Aisaki play sisters. The story follows Reira being seduced by the lesbian-leaning Shiho, leading to a physical relationship and eventually both indulging in pleasure together. I think Reira is more beautiful in both face and body, but Shiho is also quite pretty. However, the term 'mature woman' usually implies age, so I'm not sure if it fits. In terms of sexual technique, though, they are both pros. The tongue kissing, scissoring, and the use of a double-ended vibrator while grinding hips are the peak erotic highlights. Shiho is good, but... Reira Aisaki is just stunning!