[HRSM-091] "Big brother... is this your first time? I'll teach you lots of cute naughty things." My sister who loves her brother comes into the bath... and we have sex, kissing each other passionately like adults, and I take his virginity... (Censored)

My big brother-loving little sister came into the bath... She's starting to look a little more grown-up, but I thought she was still a kid, and then she suddenly started to give off an erotic vibe and started to kiss me like an adult would. "Big brother... is this your first time? I'll teach you all the cute naughty things." I took his virginity with a deep kiss and sex... Without telling my parents, I thrust into the depths of her vagina over and over again and came inside her over and over again!