[Lesbian first time!] "Can I stay at your place for a few days?" My sister-in-law suddenly came to stay for a family reason. She's just as beautiful as she was before. But there's something strange about her that I can't quite grasp. That night, during a massage, my sister persistently touches my breasts and butt. The next morning... My sister suddenly licks my face all over, and I ejaculate even though she's not my husband. From that day on, my sister's actions escalate, from exchanging saliva to making me cum over and over again with a double-headed vibrator that I've never seen before, and I discover the pleasure of women interacting with each other. (A must-see hardcore lesbian work)