My cousin, who always calls me ``sister'' and is like a younger sister, is a defenseless girl who doesn't even wear a bra yet. When we took a bath together and showed each other our bodies, my cousins ​​were very interested in my adult body and sex, so I secretly gave them my first erotic lesbian lesson in the bath!

I was at an age when my female cousins, who adored me and called me ``Sister, sis,'' were about to become adults. These girls came to visit me for the first time in a while and we took a bath together. She looked puzzled when she compared her small, swollen breasts with my adult breasts. My pubic hair that doesn't grow all the time is strangely naughty and tickles my erotic heart, and I can't help but feel like a lesbian.