I answered unsure. I do believe that Jesus had to be perfect in order to be the perfect sacrifice for us. But I have a side note question which, I believe, is still in line with the original question. Didn't Jesus experience every emotion that we experience? What about lust? Did Jesus ever lust? I've been wondering about this for a while. Please don't stone me. It really is an innocent question.
Don't feel bad because you asked a question that you are sincere and serious about.
The Bible says that Jesus experienced everything we did when He was in His earthsuit:
Hebrews 4:15: For we do not have a High Priest who cannot sympathize with our weaknesses, but was in all
points tempted as
we are, yet without sin.
Amplified: For we do not have a High Priest Who is unable to understand and sympathize and have a shared feeling with our weaknesses and infirmities and liability to the assaults of temptation, but One Who has been tempted in every respect as we are, yet without sinning.
The Message: Now that we know what we have—Jesus, this great High Priest with ready access to God—let's not let it slip through our fingers. We don't have a priest who is out of touch with our reality. He's been through weakness and testing, experienced it all—all but the sin. So let's walk right up to him and get what he is so ready to give. Take the mercy, accept the help.
As I think about this question, like SuperNova said, it isn't a sin to have emotion...it isn't a sin to get angry...but we can say and do things out of emotion or anger that is sinful.
Matthew 15:11 says: Not that which goeth into the mouth defileth a man; but that which cometh out of the mouth, this defileth a man.
Amplified: It is not what goes into the mouth of a man that makes him unclean and defiled, but what comes out of the mouth; this makes a man unclean and defiles [him].
The Message: He then called the crowd together and said, "Listen, and take this to heart. It's not what you swallow that pollutes your life, but what you vomit up."
So to your specific question about Jesus and lust:
I would venture to say that yes, He did lust, just as we do because Hebrews 4:15 says that he was "in all
points tempted as
we are". Lust is defined as "an intense longing". We usually want to associate lust with just for sexual desires, but lust can apply to other things as well. So whatever (unhealthy things) Jesus may have lusted after, He couldn't have lusted after such things for that long. Why? Because He knew to follow 2 Corinthians 10:5: "Casting down imaginations, and every high thing that exalteth itself against the knowledge of God, and bringing into captivity every thought to the obedience of Christ;"
We have to do what Jesus did: the enemy (and our own flesh) will put thoughts into out minds, like seeds that could grow into weeds if not dealt with right away. We have to 1) cast those imaginations down (acknowledge those impure thoughts right away and cast them down) and then 2) replace those impure thoughts with pure thoughts: think on those things that are pure, just, lovely, of good report, etc.
Hope that helps....
ETA: I just read this entry from Numbers 11:34 in my New Living Translation Bible:
Craving or lusting is more than inappropriate sexual desire. It can be an unnatural or greedy desire for anything (sports, knowledge, possessions, influence over others). In this circumstance, God punished the Israelites for craving good food! Their desire was not wrong; the sin was in allowing that desire to turn into greed. They felt it was their right to have fine food, and they could think of nothing else. When you become preoccupied with something until it affects your perspective on everything else, you have moved from desire to lust.