"Won't I have an affair if I use my hand to masturbate?" Staying in the same hotel for three consecutive days, I was degraded and corrupted by my girlfriend's younger sister's little devil's masturbation, ejaculating 17 times before being taken advantage of. (Ishihara Nozomi MIDV-967)

To get my girlfriend, who's hesitant about sex, to agree, I mustered the courage to take her on a hot spring trip. To make things difficult, she brought her younger sister along… I thought she'd fail, but her sister turned out to be a hidden slut, seducing me as soon as we arrived at the hotel. "Won't using my hands prevent me from having an affair? I don't know…" Although I felt guilty, I couldn't resist her sister's devilish temptation. I… worried about being discovered by her older sister, who is my girlfriend, Nozomi. Now, her sister's lewd face and suggestive words excited me immensely; I've been slept with by her sister…