"I'm not wrong! It's all my big-breasted sister's fault!" My only companion as a shut-in is my older sister! She's incredibly gentle, intelligent, and cute, and she has huge breasts! She's my ideal woman! AP-124

My older sister is my only companion, a shut-in! The ideal woman! But she often wears clothes that show off her cleavage, making it impossible for me to get an erection! My sister seemed very shocked when she noticed! So, of course, I took the opportunity to rub her breasts...