Me, my girlfriend, and her friend Aoi, who often hang out together.When she wasn't looking, Aoi grabbed my hand and brought her body closer to me, seemingly interested in me.One weekend, she was going on her family trip, so we didn't see each other for three days.On the day she left, Aoi and I ended up having cheating sex without asking either of us.After that, I spent many times having sex to make up for what I could not do until now.We had sex most of the time except eating and sleeping.Their time passed quickly, and the day when she would return from her trip was drawing near.