When he meets his cute niece again after a long time, she sits on his lap! He begs her not to get off... The feeling of her soft ass rubbing against his dick makes him fully erect! The niece notices something strange about her uncle and does something unexpected! Even though the family is right next to her, she starts to rub her thighs against him, and then slips in without permission! She secretly shakes her hips, holds back her voice, and even cums inside him! If the people around him find out, the family relationship will be instantly ruined in this thrilling incestuous sex!