I wasn't allowed to date til I was 16, and I was sheltered as well. I learned alot from guys I dated, (and yes, I snuck around and dated at 15) and from reading online. You will learn alot, and just don't worry. I am still a virgin btw (but I have come pretty close to changing that.) and my bf is not, and we're both fine with that.
Being sheltered will not hurt you in the long run, it may make you feel like you have missed out right now, but soon you will be comfortable with what you know and have done.

I've never had a boyfriend. I didn't get my first kiss (which was a peck on the lips) till I was 22. I didn't get my real first kiss (like a french) till I was 23.
And somewhere between those two I lost my virginity. lol.

Anyways, no matter how "sheltered" you think you are, remember, everyone is that way at one point in time.
I think everyone has to make some sort of an ass of themselves in front of their partner or it just wouldn't be right. lol.

Sex, love, and relationships are learn as you go processes. You'll learn right from wrong as you go along and mature, and all you have to remember is to carry those lessons on through life.

All you have to do is relax.Everything will fall into place as you two grow with each other.You will learn what you need to know about sex soon enough so just enjoy him and make sure,above all else,he's worth giving that part of yourself to him.There is nothing worse than just getting it out of the way and regreting it later when you find somebody who's truly worth it.

The age u start doesnt matter- i didnt date till i was 15, just because i thought all boys were boring and smelly

With the right person everything will feel wonderful- being relaxed and trusting you other half is most important to a great relationship.