Gen 19:34

וַֽיְהִי֙ מִֽמָּחֳרָ֔ת וַתֹּ֤אמֶר הַבְּכִירָה֙ אֶל־הַצְּעִירָ֔ה הֵן־שָׁכַ֥בְתִּי אֶ֖מֶשׁ אֶת־אָבִ֑י נַשְׁקֶ֨נּוּ יַ֜יִן גַּם־הַלַּ֗יְלָה וּבֹ֨אִי֙ שִׁכְבִ֣י עִמּ֔וֹ וּנְחַיֶּ֥ה מֵאָבִ֖ינוּ זָֽרַע׃

The next day the older daughter said to the younger, “Look, I slept with my father last night. Let us get him drunk with wine again tonight so you can go in and sleep with him and we can preserve our father’s line.”