Dear Haded,
If you try to notice, you'll find that none of the replies are biased. I don't understand why you used that word. You want to fuck, she wants to fuck and almost everyone here advised against it. So, ,, towards whom are all the replies biased? None, I guess.
Anyways, let's try to find the pros and cons of the situation.
PROS
1. Both of you want it.
2. She's easily approachable as she herself proposed it (indirectly though---- and I'm not sure if you really read her signals rightly or just over read them and appreciated only what you had wanted)
Can't think of any other pro.. .. everyone and Haded, help!!!
CONS
1. First sex is a memorable moment of life for both a man and a women. Why would you have it with someone you don't wanna spend your life with. And why would you want her to have a bitter memory of unsuccessful love whenever she thinks of her first love making session?
2. She black mailed you to start a relationship with her. I'm sure she has the capacity to black mail you into maintaining it. Taking her virginity will only put you in a weaker court.
I know you'll lose yours too but virginity is a bigger issue (both emotionally and socially ) for a woman than a man. I hope you understand.
3. She wants a sexual relationship with a person she loves, trusts and is sure she wanna spend her life with.
Where as you want to have sex with a person who -you clearly don't love,
- is easily approachable and convincible coz she loves you.
So for her its
Love + hormones + curiosity
And for you its
Hormones + curiosity (*a major factor missing)
4. You are not sure whether you should do it or not. A clear indication that your conscious holds you to think well before you jump. Brother, once you do it, then there's no way it can be undone. So, if you feel guilty about it later, then, you'll have that guilt within you forever. You are still in a preventable stage.
5. Both of you are too young do decide right vs wrong. (I know, if you can vote then you can decide right from wrong too, but you are still immature to see a lot of things that you'll learn only as you grow).
Life'a too short to make every mistake yourself, learn from others' mistakes.
Lastly, if you are thinking of dumping her eventually, my advice is that you do it sooner than later. Why? Because longer the relationship, more emotionally involved she will become. It would become very hard for her to move on. Spare her the horror. Although you don't Love her, it seems you do care for her. You are friends, right? Why you want her to feel she wasted her previous time on you.? And the same for you? Life is short, so CUT THE CRAP!