Hi, I would like to ask you a question. (I don't know if this is alright that I e-mail you instead of phone. But I thought I'd give it a shot.) 
I am 16 years old. I have a 19 year old boyfriend. We have been together for almost 7 months. We waited to have our first kiss until a few weeks ago mainly because of me. I was nervous and also, he was my first kiss. (We are both Christians and love the Lord strongly.) 
I often go to his house in the afternoon inbetween church services. He usually ends up kissing me, and I end up kissing him back. (I guess I should say we "make-out" on the couch.) Anyway, I like it but I don't. I pull away and try to distract him by telling him "I don't feel well," or 
I say something else. 
I know that I need to tell him that I don't want to be kissed all the time. Like, I feel as though when he says he misses me, that he doesn't miss me, he misses my body. He is always making comments about my chest and how "beautiful" I am. I know I have low self esteem but if he really means it, he's going over board with the comments. 
I've asked him before if he's had trouble with lust and he told me that the only thing he can remember is that he lusted after his girlfriends... Doesn't make me feel too good!  I know this will seem strange, but I feel guilty once and a while after I've been with him. (When were on his couch kissing or whatever...) 
My boyfriend told me that a while ago, (maybe 4 or 5 years) he had a problem with lust. I know that since it has surfaced that there is a great chance that he still deals with it. But, honestly, he is trying to get over it. I know that I myself am struggling a bit with this issue also. I hate it. I can't believe some of the things I think. It's not like me at all. I also want to tell you that hes seems to really enjoy kissing me. I don't really enjoy it anymore. I don't know if I ever have. Maybe it's because I'm too young?  Which reminds me, how do I know when he is getting turned on?  I'm really scared about that.  I have strong morals and so does he. 
I just know that everything can change quickly.... 
Anna 

Dear Anna: Thanks for writing & for your honesty. I am so thankful that you desire to obey the Lord in your relationship.  But since you have so many concerns, I recommend that you place boundaries on and be in control of the physical part of your relationship with your boyfriend.  He is much more experienced sexually which will make it easier for him to fall into temptation.  Since you desire to follow biblical standards in keeping your relationship pure, I would advise you to take the following steps to guard yourself from going" too far"...  

1.  Pray about what the Lord would have you do in this relationship. You have a very strong sense of morals and desire to please the Lord. You are already feeling unsettled about how far the physical aspect of this relationship is going. It seems to me that the Holy Spirit is convicting you that this is not a God-honoring relationship.  Read scriptures and books like: The ABC's of Wisdom : Building Character With Solomon by Ray Pritchard  $10.49  or Too Busy Not to Pray : Slowing Down to Be With God : Including Questions for Reflection and Discussion by Bill Hybels 
$8.79  which will help you get closer to Christ, build your character, give you incentive to maintain self-control, make wise decisions and guard your purity. You can order these now off our web site or look for more books in the resources section. 

2. Protect yourself by limiting time spent alone together.  Do things together in public places and don't go to your boyfriend's apartment unless you go there with other friends.  You said you are concerned about knowing when he gets "turned on".  Well, it does not take long for a man to get excited sexually since their hormones (testoterone) respond quickly to visual, auditory and sensual stimuli.  You are concerned about the provocative comments he makes about your chest, etc.  I think you should be very concerned and thus, cautious since by these comments he is trying to tempt you sexually and expressing what is on his mind.  Most likely he has had sexual intercourse with other girls. And once someone has had intercourse/sexual relations he/she will have a greater propensity (it will be a greater temptation) to want to do it again.  Thus, he will have less control and will try to persuade you to do it eventually.  Don't be naive about it. Though he is a Christian.. many Christians have fallen into this temptation.  He has already warned you that he has a problem with lust. Guard yourself.  Another thought: If something happens and you end up having sex with him, you will feel you have been pressured into it and he could be charged with rape, since you are a minor and he is considered a "majority" (being 18 years old) in this society.

3. You may want to stop dating altogether until you are older and ready to marry because sex is such a temptation for teens and singles.   I know a lot of teens and singles now who have stopped dating and are socializing in groups of Christian friends instead. It sounds like your relationship is a very serious one since you have been dating for 7 months.  Since you are only 16 and not wanting, even fearing  getting involved physically, you might want to stop the "dating" scene completely.   Have you read the Christian books   I Kissed Dating Goodbye by Joshua Harris $ 8.79   or   Givers Takers and Other Kinds of Lovers by Josh McDowell, Paul Lewis $ 3.99 ? 
You can order either book right now. You might want to challenge other Christian friends to read these books so you can support each other to live by the guidelines promoted by these authors. 

4. Inform yourself of  the consequences of engaging in premarital sex. You must already know the many harmful consequences of falling into sexual immorality: besides sinning against God and feeling alienated by Him, there are sexually transmitted diseases, AIDS (which is deadly); pregnancy, psychological turmoil, and couples breaking up over it. 
I had someone in my office recently who contracted herpes from her 
boyfriend. Herpes is a painful and incurable sexually transmitted 
disease which will plague her for the rest of her life. She feels like 
her life is over at age 23 and that she will never be able to have 
another relationship because of it. 
The psychological and spiritual turmoil that comes after one has committed sexual immorality has very detrimental effects on one's life.  

5. Build your self-esteem and identity. .  Anna, you wrote:  "I know I have low self-esteem"  Low self-esteem can make you compromise your standards just to be liked or loved by someone.  It can keep you from doing what you really want to do- which is to please the Lord. 
You also wrote, "I know that I myself am struggling a bit with this issue also. I hate it. I can't believe some of the things I think.  It's not like me at all. I also want to tell you that my boyfriend seems to really enjoy kissing me. I don't really enjoy it anymore. I don't know if I ever have. Maybe it's because I'm too young?... I have strong morals and so does he. I just know that everything can change quickly...." 
Since this relationship is really bothering your conscience I would 
encourage you to take a break from it and take time to contemplate all 
the steps I have mentioned above. As you said...Maybe I am too 
young?....and everything can change quickly."   Why put yourself in a 
situation where you will both be tempted to do things you don't want to 
do and harm your conscience, relationship with the Lord and possibly 
result in irreversible damage physically or in pregnancy.  I know too 
many single parents who are not happy about their situations and the 
pressures they face everyday because they had a child out of wedlock. 
Marriage is a long way off... you need to find out who you are, grow in 
Christ and protect yourself from harm.  You need to build your self-esteem so you know who you are and what you want in a man.  I suggest reading The Search for Significance by Robert McGee    

6. Contemplate how you can apply these scriptures to your life: 

Heb 12:14  Make every effort to live in peace with all men and to be holy; without holiness no one will see the Lord. 
Ps 51:10  Create in me a pure heart, O God, and renew a steadfast spirit within me. 
Ps 119:9  How can a young man keep his way pure? By living according to your word. 
Prov 15:26  The LORD detests the thoughts of the wicked, but those of the pure are pleasing to him. 
Matt 5:8  Blessed are the pure in heart, for they will see God. 
2 Cor 11:3  But I am afraid that just as Eve was deceived by the serpent's cunning, your minds may somehow be led astray from your sincere and pure devotion to Christ. 
Phil 1:9-11  And this is my prayer: that your love may abound more and more in knowledge and depth of insight, so that you may be able to discern what is best and may be pure and blameless until the day of Christ, filled with the fruit of righteousness that comes through Jesus Christ-- to the glory and praise of God. 
Phil 2:12-15 
12 Therefore, my dear friends, as you have always obeyed-- not only in my presence, but now much more in my absence-- continue to work out your salvation with fear and trembling, for it is God who works in you to will and to act according to his good purpose. Do everything without 
complaining or arguing, so that you may become blameless and pure, 
children of God without fault in a crooked and depraved generation, in 
which you shine like stars in the universe 
1 Tim 5:22...... Keep yourself pure. 
2 Tim 2:22 Flee the evil desires of youth, and pursue righteousness, faith, love and peace, along with those who call on the Lord out of a pure heart. 
Gal 5:19-24  The acts of the sinful nature are obvious: sexual immorality, impurity and debauchery; idolatry and witchcraft; hatred, discord, jealousy, fits of rage, selfish ambition, dissensions, factions and envy; drunkenness, orgies, and the like. I warn you, as I did before, that those who live like this will not inherit the kingdom of God. But 
the fruit of the Spirit is love, joy, peace, patience, kindness, 
goodness, faithfulness, gentleness and self-control. Against such things there is no law. Those who belong to Christ Jesus have crucified the sinful nature with its passions and desires. 
Col 3:5-10 
Put to death, therefore, whatever belongs to your earthly nature: sexual
immorality, impurity, lust, evil desires and greed, which is idolatry. 
Because of these, the wrath of God is coming. You used to walk in these ways, in the life you once lived. But now you must rid yourselves of all such things as these: anger, rage, malice, slander, and filthy language from your lips. Do not lie to each other, since you have taken off your old self with its practices and have put on the new self, which is being renewed in knowledge in the image of its Creator. (NIV) 

Anna....  the Holy Spirit is convicting you that this is wrong or else 
you wouldn't have written me and asked these questions.  "Seek first God's Kingdom and all these things will be added to you." Matt. 6:31.. 
Christ will meet your needs.  Put Him first in your life and He will help you, guide and strengthen you. 
Remember Joseph when he was seduced to commit sexual immorality by Potiphar's wife.... he ran from the temptation.  The Bible says in 
Gen 39:5-12 " From the time he put him in charge of his household and of all that he owned, the LORD blessed the household of the Egyptian 
because of Joseph. The blessing of the LORD was on everything Potiphar had, both in the house and in the field.  So he left in Joseph's care everything he had; with Joseph in charge, he did not concern himself with anything except the food he ate. Now Joseph was well-built and handsome, and after a while his master's wife took notice of Joseph and said, "Come to bed with me!"    But he refused. "With me in charge," he told her, "my master does not concern himself with anything in the house; everything he owns he has entrusted to my care. No one is greater in this house than I am. My master has withheld 
nothing from me except you, because you are his wife. How then could I do such a wicked thing and sin against God?" And though she spoke to Joseph day after day, he refused to go to bed with her or even be with her.  One day he went into the house to attend to his duties, and none of the household servants was inside.  She caught him by his cloak and said, "Come to bed with me!" But he left his cloak in her hand and ran out of the house." (NIV) 

Kissing will tempt you to go further physically.  Kissing stimulates the body sexually and you will be tempted to fall into immorality. Joseph did not allow himself to be alone in the house with Potiphar's wife... he had a strong desire not to sin against the Lord..he fled from the temptation.  
Anna, get some support from your youth pastor or his wife.  You need to be in prayer and counseling with someone who can give you biblical guidance.  
Read more about how to have victory over sin in the answer to this person who writes  "I am unsure if I am a child of God?" and read about how to have a personal relationship with Jesus Christ in this article on faith. 
I hope this helps you.   God bless you.     Let me know how you 
are.      Lynette Hoy, NCC, LCPC