Her Big-breasted Sister, Who Obviously Wanted To Have Sex With Me, Missed The Last Train And Came To Stay Over. Miyu Kohinata

A sudden phone call late at night. "I missed the last train, is it okay if I come over now?" I thought it was a bad idea to grant my girlfriend's little sister 'Miyuu's request, but I reluctantly let her stay after she insisted. She came over, used the bath, and was relaxing on the sofa. My eyes were drawn to the voluptuous cleavage peeking from her loungewear, and she said, "Were you looking at my boobs? Could it be... you're getting excited?" Huh, was she showing them on purpose? It didn't seem like she was trying to seduce me, but the atmosphere clearly felt like sex was okay. Then she playfully brought her soft-looking lips close, mimicking a kiss, and my reason collapsed!! "You won't tell my sister, right?" I'm going to thoroughly mess with her cunning, little devil, easygoing little sister today!!