Lechery
 
 
St. Thomas Aquinas (1225 - 1274) had this to say about the Sin of Lust:
"...wherever there occurs a special kind of deformity whereby the venereal act is rendered unbecoming, there is a determinate
species of lust. This may occur in two ways: First, through being contrary to right reason, and this is common to all lustful vices;
secondly, because, in addition, it is contrary to the natural order of the venereal act as becoming to the human race: and this is
called "the unnatural vice." This may happen in several ways. First, by procuring pollution, without any copulation, for the sake
of venereal pleasure: this pertains to the sin of "uncleanness" which some call "effeminacy." Secondly, by copulation with a
thing of undue species, and this is called "bestiality." Thirdly, by copulation with an undue sex, male with male, or female with
female, as the Apostle states (Rm. 1:27): and this is called the "vice of sodomy." Fourthly, by not observing the natural manner of
copulation, either as to undue means, or as to other monstrous and bestial manners of copulation. (lust web page)
 
 
We're all familiar with lust! Lust does strange things to us - it can be frightening in its intensity one minute, and gone the next. We can feel that our actions are out of our control - we are helpless in the face of our feelings. Lust is desire, sexual desire, that's out of proportion, over the top.
 
 
Lust:  "I did not have sexual
                     relations with that woman,  Miss Lewinsky"
     Clinton 01:98
Definitions and examples of Lust (Lechery):

Lust: Habitual indulgence of lust; lewdness of living.  Luxurious or inordinate pleasure.
        Examples:
1590 Spenser F.Q. i. iv. 24 And next to him rode lustfull Lechery Upon a bearded gote.

     1640 Yorke Union Hon. 17 You cherish three daughters, Pride, Covetousnesse and Lechery.

Lust and how it is perceived in The Farie Queene:
    Lust or Lechery rode behind Gluttony.  He arrived on a "bearded goat" (Stanza 24, Book 1).  He had the sign of jealousy on him and dressed in black over his filthy body.  Spenser describes him as fake and fickle, with baited fleshy hooks.