SSIS-019 Even though my girlfriend is next to me, she whispers in my ear from behind and makes me crazy by teasing my nipples. Sayaka Otoshiro, my little devilish sister

``I have to make sure that my boyfriend is suitable for my sister!'' One day, my sister brought her boyfriend home, but he didn't give her a good impression, including his looks! - ``What's good about this guy?'' I thought to myself, so I decided to try out various things to determine if he was the right boyfriend! - First, focus on stimulating the nipples by twisting them 360 degrees from behind! - Then she whispers lewd words in your ear that will melt your brain! - Then...I faint in agony and ejaculate immediately! - "It's the worst thing to feel when your sister is right next to you!"