Proverbs 6:25
"Lust not after her beauty in thine heart; neither let her take thee with her eyelids."
Cross References (ranked by relevance)
But I say unto you, That whosoever looketh on a woman to lust after her hath committed adultery with her already in his heart.
And when Jehu was come to Jezreel, Jezebel heard of it; and she painted her face, and tired her head, and looked out at a window.
Thou hast ravished my heart, my sister, my spouse; thou hast ravished my heart with one of thine eyes, with one chain of thy neck.
Moreover the LORD saith, Because the daughters of Zion are haughty, and walk with stretched forth necks and wanton eyes, walking and mincing as they go, and making a tinkling with their feet: