[Reducing Mosaic]START-567 I couldn't help but stare at my friend's sister's exposed boobs without a bra. When we were alone, I pointed out she wasn't wearing one and she blushed so hard and was weak to pushing, so I just kept fucking her.

Shiro stays at his best friend's house and, unaware of his sister Nano's secret love for him, he stares at her defenseless, braless appearance.The bra I happened to pick up in the changing room was a shocking I cup.While sleeping next to her brother, he forcibly hugs Nano, who trembles with shame when it is pointed out that she is wearing no bra.A story of pure love and sex with a beautiful girl with big breasts, where the passion of first love overflows.