Touching someone doesn't count as cheating? In a hotel with three consecutive nights of motel space, I was masturbated 20 times by her sister's little devil, and in the end, her sister even stole me away. (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...