pencil and story: NewMeN

Masaki Kobayashi shows up at his teacher's apartment for private lessons.
Mayumi makes him sit down after a shower and prepares a video camera to film the lesson.
Her intentions are soon clear and Masaki finds himself naked and aroused.
The stretching exercise to which she subjects him, ends up making Masaki bent over on himself, with his own glans thrust into his mouth.
Mayumi starts licking the boy's scrotum and anus until he cums in his own mouth!
At this point he is ready for a full report with the teacher.
After training, Mayumi forces him to come back the next day, threatening to make the video public.