Because the women are haughty and walk with their necks stretched out, mincing as they go, and making a tingling with their feet, God will smite them with a scab on the crown of their heads. And God will discover their secret parts. 3:16-17

Isaiah has sex with a prophetess who conceives and bears a son. (You weren't expecting a daughter, were you?) God then tells Isaiah to call his name Mathershalalhashbaz. (It has a nice ring to it, doesn't it?) 8:3

God tells Isaiah to take off all his clothes and to wander about completely naked for three years as a "sign and a wonder." In this way he will be just like the Egyptian captives who will walk about naked "with their buttocks uncovered." 20:2-5

Tyre "shall commit fornication with all the kingdoms of the world," and her hire shall be holiness to the Lord." 23:17-18

"Thy nakedness shall be uncovered." 47:3

You have sex with other gods on every mountain top and under every tree! 57:5-8

You put on ointment and had sex with the king. 57:9