respect her decision if you really love her. You may divert the "heat" to another woman if you cant contain your animal instinct.. its a risk you've got to take... just make sure you wont get caught or be sorry to face the consequence of loosing her... it will be a hard blow if this happens especially if you thinks she's the right one.
What will you do if your girl friend say '' we can't have sex, we are not married yet''?
Just tell her that you guys will be practicing safe sex!!!!! Double up on the condums okay.. hahahhah Make sure you use "trojan brand" not your Number 1 brand condom. hahhahahah You never know... if you perform well and she might wants it often. hahahhaha