"Presenting luxurious prizes to your closest friend" is a fake project that male and female friends who get along well applied for, leading to an erotic mission. As the demands escalate, a reluctant girl is told 'It's fine if you wear a condom, right?' and given a condom, proceeding to kissing, fellatio, and frottage! Was it rubbed too much? The condom breaks and suddenly it's raw insertion!?
