"Gift the closest siblings an overseas trip" is a fake project that the participating brother and sister were assigned an erotic mission. They plot to make her climax by not letting the erect brother's penis ejaculate until the end. As the demands escalate, the reluctant sister is told "It should be fine if you use a condom," and is given a condom, proceeding with kissing, fellatio, and tribadism. Did they rub too much? The condom breaks and it turns into bareback insertion!
