One night, I was drinking with my best friend and my girlfriend (99cm, I-cup). Dazzled by her big tits, I made her give me a titjob and a blowjob, and played with her with a vibrator without my best friend noticing. She was troubled, but she didn't resist, so I didn't hesitate to let her do it. After a while, when everyone got drunker, I started to rub her breasts while she was sleeping, even though my best friend was passed out nearby. She woke up and quietly resisted, but when I forced her with a vibrator, her whole body twitched and convulsed in agony. After making her serve me with a blowjob and titjob, I inserted my penis into her pussy, and she continued to be fucked by me, struggling between her reason, her sense of immorality, and her desire for pleasure.