Regardless of his girlfriend's presence, he deeply kissed her, seduced her, and forced himself to ejaculate inside her. (This is a reference to a pornographic video, likely titled "Wei Jing Zhen Xun stars00302")

My girlfriend was right next to me, and her younger sister leaned close and whispered lewd things in my ear! Looking at my girlfriend's seemingly innocent-looking sister in her uniform and glasses, she said intimately that she was actually very lewd, and then reached for my penis…