Hello, can anyone know and tell me if I read a manga for a long time (I don't remember on this site or not), the manga itself was decent in size or consisted of several chapters. The plot was that there were acquaintances / friends, a girl and a guy. Once in a conversation, the girl mentioned that she was dating a guy, but he is so cool and experienced that she, an inexperienced / virgin, will disappoint him sexually. A friend offered her an internship and she agreed. The training took place, it seems, in the guy's apartment. After prolonged training, she still went to her boyfriend, and at the end a friend sits in her room, recalls everything that happens and realizes that most likely everything is on this, but at that moment the girl comes, says that everything went well, but stop early because she still has a lot to learn.