After work, my boss Naho invites me out to celebrate our performance improvement. I get so excited that I fall asleep, but the last train has already left, so I end up killing time at Naho's house until the first train in the morning. Naho has changed from her suit into loungewear, and I'm excited to see her in a different mood from the daytime. I can see her big ass and panty lines, and my sexual desire that has been building up after working hard every day explodes. I can't help but insert it from behind and cum inside her.