A new 22-years-old older sister's porn debut ~Nee-Chan. Just how much do you love sex~

Shinonome Miki is a brilliant student attending a prestigious private university. - Even from her younger brother’s perspective—mine—she’s beautiful, a little airheaded, but her personality isn’t bad either. - Honestly, she’s the kind of older sister you’d be proud to show off anywhere. - We often go shopping or hang out together, and we’re so close that people sometimes mistake me for her boyfriend. - Then one day, she dropped this bombshell: