There is one who performs one act of cohabitation and is liable for it to six chataos. He who cohabits with his daughter may be liable for her as his daughter, his sister, his brother’s wife, his father’s brother’s wife, a married woman, and a menstruant. And he who cohabits with his daughter’s daughter may be liable for her as his daughter’s daughter, his daughter-in-law, his wife’s sister, his brother’s wife, his father’s brother’s wife, a married woman, and a menstruant. R’ Yose says: If the [great-]grandfather transgressed and married her, he is liable for her as his father’s wife, and so is he who cohabits with his wife’s daughter or with his wife’s daughter’s daughter.