When I skipped school due to feeling unwell, my brother who's a medical student came to examine me… But his examinations always involve pretending it's an accident while deliberately playing with my nipples. He says it's part of the examination and makes me spread my legs so he can get a good look at my private parts. Before I know it, he's inserted his erect penis into me, claiming it's an injection. However, I don't dislike this; in fact, it feels great～
