I'm in an office romance with my girlfriend, and we secretly discuss our next date at work, and I'm at the peak of happiness. I thought I was hiding it, but my junior colleague Satsuki found out, and she invited me out for drinks, saying that she had recently broken up with her boyfriend. Satsuki was dating a celebrity, and was very cute, so when we decided to go for drinks at her house, I couldn't resist her temptation and we ended up having sex. Then Satsuki put her finger in my anus, saying, "I'll show you something amazing."