In order to prepare well for the upcoming university exam, the younger brother asked his parents for permission to go to the city to stay at his brother's house for a few months with the desire to study and be tutored by his brother's girlfriend - a beautiful, talented girl who is currently a student of a famous university. The older brother was very kind, always reminding his lover to tutor him regularly while his girlfriend was dressed very revealingly and airy at home, especially while teaching. There have been many times when he has to try to control his little boy after accidentally seeing his sister's sensitive area. But the fire near the straw also burned for a long time, during a fateful tutoring she unintentionally made a very suggestive pose on the bed, exposing her panties and chubby buttocks, this time his cock couldn't stand it anymore, so she boldly quickly tucked her little boy inside from behind, making her unable to reflex. Thinking that you would get scolded badly afterwards, I apologized profusely, but no, on the contrary, she actually wanted you to do that to her one more time.