Mori-senpai is always there to make up for my mistakes. One day, I missed the last train at a drinking party and decided to go back to her house to drink again. Her nipples were clearly visible in her defenseless loungewear...I couldn't help but get excited by her casual, braless appearance, which she doesn't show at work. Mori-senpai's sex appeal made me lose my mind, and while she teased me for 3cm of my penis, I repeatedly betrayed her and had sex with her, even though she had a girlfriend.