MIDA-106 Hand play doesn’t count as cheating, right? After staying three nights at an inn, I was led astray by my girlfriend’s younger sister’s teasing hand job and ended up exhausted after 19 releases, getting cuckolded. Rikka Ono

As a common thread among the girls I’ve liked so far, I think I’ve usually been drawn to their personalities rather than their looks. But my current girlfriend’s younger sister is, by far, the cutest woman I’ve ever met, and it’s causing me trouble. That’s because her sister keeps secretly trying to tempt me… Even though it’s exactly the kind of situation I want to avoid, she’s unbelievably cute… I feel like I might lose control and forget all about my girlfriend. Rikka-chan, my girlfriend’s younger sister, keeps coming on to me while insisting that it doesn’t count as cheating. Even though I know it’s wrong to my girlfriend, I end up getting swept away by Rikka-chan’s advances, and I’m the worst—but also having the most thrilling time…