"I really love you, big brother..." She masturbates with a vibrator every night while sniffing her brother's underwear! Even though she's embarrassed to be seen by her brother, the sense of guilt and strange excitement of having sex with her boyfriend makes her feel more than usual and she cums! She gathers up her courage and confesses her feelings, and finally has sex with her brother! "I'm sorry I seem like a pervert and am such a little sister..." A lovey-dovey subjective sex scene where she just stares at her beloved brother!