She violates her niece's slut posing as boyfriend

After seeing her niece's bitch with the fox body she has, she gets very horny and wonders how to penetrate her. One day he finds her wearing a mask because the girl is waiting for her boyfriend to have sex with her in one of those sex games typical of the most cruel couples. What uncle does is take advantage of his niece not recognizing him to impersonate her boyfriend and stick his dick in her mouth and pussy. She wants to get fucked fast so they won't be interrupted so she can satisfy the fantasy of incesting her niece.