Two step-sisters suddenly appeared. Both are super cute, but they're always putting each other down about their breasts. What's more, they ask me for my opinion, which is a problem. In the end, the big-breasted sister strongly opposes the small-breasted sister's claim that big breasts have low sensitivity and the smaller the breasts, the higher the sensitivity! When she asks her brother to confirm and lets me touch her, she starts to feel it with ragged breathing! Then, the small-breasted sister doesn't lose out and escalates things by letting me play with her nipples...
