The Sin of Lust
The enemy said, I will pursue, I will overtake, I will divide the spoil; my lust shall be satisfied upon them; I will draw my sword, my hand shall destroy them. Exodus 15:9
And it came to pass in an eveningtide, that David arose from off his bed, and walked upon the roof of the king's house: and from the roof he saw a woman washing herself; and the woman was very beautiful to look upon. Samuel 11:2
The woman, if you know your bible stories, was Bathsheba; and what does David do about this?
And he [David] wrote in the letter, saying, Set ye Uriah [Bathsheba's husband] in the forefront of the hottest battle, and retire ye from him, that he may be smitten, and die. Samuel 11:15
Easy to see why Lust is considered the most deadly of all the sins.
Monsignor Wojciech Giertych, the Pope’s personal theologian, notes that men are more prone to commit sins of lust, while women of pride. While I'd have to agree with this on principle, I really have to wonder if that's true considering the steady rise in romantic erotica sales. :-)
Lust is the self-destructive drive for pleasure out of proportion to its worth. Sex, power, or image can be used well, but when they are out of control they become the sin of Lust.
The sin of Lust occurs when one intentionally initiates and continues to fantasize about another person in a lustfully sexual way, knowing that it is wrong, but choosing to do it anyway. Even thinking lustful thoughts about another person is sinful, but acting on that thought is even worse because it has social consequences.
If you’d like to check to see how “lustful” you are, check the Lust Test.
Your punishment in Hell will be: You'll be smothered in fire and brimstone. Not kisses.
To combat Lust, you must practice:
The Heavenly Virtue Chastity
Chastity is refraining from sexual activity until marriage and then enjoying a lifetime of sexual activity within the bounds of marriage.
Chastity is also moderation in dress, speech, thoughts, and sexual activity. Without chastity, humans are not unlike animals which copulate purely out of instinct. Chastity compliments the higher intelligence of humans.
Let us be careful of the company we keep, and avoid all occasions of sin to preserve virtue of chastity. Let us form the habit of temperance in all things, so as to strengthen our self-control. We should often have recourse to prayer and the sacraments, receiving these frequently. "Walk in the Spirit, and you will not fulfill the lusts of the flesh" (Gal. 5: 16)