The Bible is clear for a christian what is acceptable and not acceptable in a relationship. With you saying you have only been dating for a couple of weeks you don't really know her and you need to develop the friendship part of your relationship and stay away from anything that God intended for marriage. Don't put yourself in situations where it will be easy to stumble.
Here are some verses that might help you....
Psalm 139:23-24--"Search me, O God, and know my heart; try me, and know my thoughts; and see if there be any wicked way in me, and lead me in the way everlasting." Guard and guide the heart--the mind.
Proverbs 4:23--"Keep [or `guard'] thy heart [or `mind'] with all diligence; for out of it are the issues of life." If you want to control life, guard your mind and don't let anybody short-circuit it.
Matthew 15:19--"For out of the heart proceed evil thoughts, murders, adulteries, fornications, thefts, false witness, blasphemies." So, not only do all good things come out of the thinking process, all bad things come out of the thinking process as well. So the Bible tells us to guard our thinking process.
[font=verdana, geneva, helvetica]Philip. 4: 8, "Finally, brethren, whatsoever things are true, whatsoever things are honest, whatsoever things are just, whatsoever things are pure, whatsoever things are lovely, whatsoever things are of good report; if there be any virtue, and if there be any praise, think on these things."
[/font]"But among you there must not be even a hint of sexual immorality, or of any kind of impurity, or of greed, because these are improper for God's holy people." (Ephesians 5:3)
"Flee from sexual immorality. All other sins a man commits are outside his body, but he who sins sexually sins against his own body. Do you not know that your body is a temple of the Holy Spirit, who is in you, whom you have received from God? You are not your own; you were bought at a price. Therefore honor God with your body." (1 Corinthians 6:18-20)
"Now concerning the things whereof ye wrote unto me: It is good for a man not to touch a woman [or, "It is good for a man not to have sexual relations with a woman," according to the NIV footnote]. Nevertheless, to avoid fornication, let every man have his own wife, and let every woman have her own husband." (1 Corinthians 7:1-2, KJV)