This is the first time I've been to my girlfriend's house. Her parents went back to their hometown and her sister went on a business trip, so only the two of us were at home. My girlfriend always insists that I wear a condom, even though I don't like it, but because she wants it, I have to go along with her. Just as we were about to get started, her sister suddenly burst into the room wearing only lingerie. With her sister present, we had to stop. My girlfriend went out to buy food while I went to take a shower, and her sister then came into the bathroom with me and wanted to shower me to apologize for what just happened. With no other choice, I agreed. She showered me with her body, using her big breasts to clean my penis. She kept seducing me, even though I love Ran very much, I couldn't resist her big breasts, especially since she didn't make me wear a condom and I was able to ejaculate directly inside her!!!