AMBI-130 — Favorite Brother And Sister: When My Sister Gets A Boyfriend Yui Nagase

"Anyone who looks at their own sister in a sexual way is weird," I thought. Until my sister got a boyfriend... I didn't pay any attention to what my sister was doing, and I felt more comfortable with less conversation and contact. That was the distance I felt from my sister. However, when I heard her phone call with her boyfriend or found cute underwear that I hadn't seen before, I realized that a different feeling was beginning to grow inside me...