This is hard to ask in a short, question format, but I'll give it my best. . .

Firstly, I'm still a virgin. I've planned on waiting until I'm ready as well as until I know who I want my first time to be with. Well I know that I'm ready now. I'm 16, but mature for my age, and I know that it wouldn't turn out to be a mistake and I wouldn't regret it if the time was to come now. The other part of deciding when is when I find who I want to share my first time with. Well I've found him now, and I know I wouldn't regret him because he's such a good guy in every way and he's got the same opinions about all this as I do. So I know I'm ready and I've got who I want to lose my virginity with.

My question is basically, well how do I know that the time's ok to have sex with him now? I'm so afraid of giving him what he wants...which is what I now want too...and then having him take off and leave me. It's happened to my best friend and many of my other close friends. So now it's become a fear of mine that when he and I have sex for the first time, he'll be satisfied with getting what he's been waiting for for so long and then leave. I do and don't think it'll happen, both. I do because of what's happened to all my friends...how their boyfriends all just take off afterwards. I don't because we've been together for such a long time and he's waited so patiently and hardly brought it up after we talked about it a while ago, not rushing me or anything.

How will I know if he'll stick around, or if he'll turn out to be a prick like all those other guys around?

I'm personally ready. I'm not asking for people's opinions on that factor. What I'm questioning is if we're ready. I know I'll get through it fine without regret, with no doubts, but what I'm unsure of is if he'll stick around after the fact.
I've been best friends with him for over 2 years before we started dating and we're going on a year as well.

It's going to be his first time as well. Like I said about how his opinions match mine on the subject... we both feel like it's not something that should be wasted on just anyone and that we want it to be perfect and special. Like most people. So he is a good guy, even when it comes to this. I hope you're right...I hope he sticks around

Oh definitely. There's not gunna be any kids coming out of me for a while lol

Yeah, obviously we'll both have room for improvement, this being our first time, and I like that it's his first time as well. I've been his first everything so far. I just like being able to share everything together