Is touching someone with your hand not considered cheating? I was masturbated 20 times by my girlfriend's younger sister, a little devil, in a hotel room with three consecutive nights of intercourse, and then she slept with me. (Mizuto Sakura, MIDA-123)

To attend my girlfriend's family funeral, I also planned a hot spring trip, but her sister came along... I thought I wouldn't be able to have sex with her again, but her sister actually seduced me... "Touching her isn't cheating, is it?" Her sister is the complete opposite of my girlfriend; she loves sex♪ She kept touching me, which excited me immensely. Even with my girlfriend right next to us, we made love while sweating. Seeing her fair skin flushed with excitement, my erection wouldn't stop...