Vagina size?

So, this might seem dumb, but I am worried about my first time with my current boyfriend. We are both twenty and I have not been intimate before, but he has and has reassured me that everything will be okay, but I still have concerns.

He is significantly larger than me, I am 165cm and he is 202cm, and well, down there is proportionate, his penis is 23cm, and I am concerned about it fitting. When I masturbate I can touch my cervix with ease, I think my vagina only about 10cm deep, so I am worried about if he will be able to, I guess I could phrase it as, ‘receive full pleasure.’

I’m just worried about being able to physically please him, I know anal is definitely an option, one that we are both interested in trying, but I want vaginal to be pleasurable for us both, I’ve heard rumours of it really hurting when a guy hits the end of there, and I don’t want that to happen.

Any advice?

Comment:

Okay, so basically what I am hearing is that it can stretch to accommodate him?