KTRA-506 Teach my cousin how to suck properly.

Saki-chan's recent trouble is her large breasts inherited from her mother. Saki-chan, who recently suffered from shoulder stiffness due to her large breasts, had her older brother, who has a fondness for breasts, massage her! The brother couldn't stand his younger sister's well-developed breasts. He called it a massage to tone them up! Saki-chan, who struggles with push-ups, finds herself playing with her body alongside her brother. Enjoy the sight of my blushing and embarrassed little sister!