Quando il cognato ha visto sua cognata da sola a casa, ha iniziato a fare sesso con lei, cognato e moglie, tutti e tre insieme fanno sesso a tre

The sister-in-law comes from school, the brother-in-law is alone at home, seeing the sister-in-law alone, the brother-in-law's intention is spoiled and the sister-in-law is seen changing clothes, after that he catches the sister-in-law and starts having sex with her, later his wife sees him, then the three together do a threesome.