My girlfriend is so cute that she seems out of place with me, an introvert. She said she was going out drinking with her old club friends, but she was dressed more flashy than usual, and I had a bad feeling about it, but I decided to believe her and send her off. However, my fears were confirmed... In the video she posted on SNS, she was drinking with men and having sex! She looked so happy and sexy, something she'd never done in front of me... Damn, I'm frustrated, but I got an erection...