Is it possible to penetrate the cervix?

I've read some other questions on here about men hitting the cervix with their penis and that the penis doesn't go through the cervix. I'm larger than average and my girlfriend is telling me that I'm actually going through the cervix. When we first started having sex it was very painful for her because she thought that I was penetrating the cervix. Now she's past it being painful but still thinks that I'm actually penetrating the cervix. My question is, is that possible?


What should I do if my boyfriend says no to role-playing?

I love my boyfriend, and communication is great, but things have gotten a little... boring.

I have this scenario that involves role-playing that I'm dying to try, but when I asked my boyfriend if he thought role-playing would be too kinky, he responded that he doesn't see the need for it and "why would I want to imagine someone else if I have you?" That was very sweet, but it makes me feel guilty to approach the subject again. I don't want him to think I love him less than he loves me, I just think it would be fun to try...

So, how do I tactfully re-approach this with him... or do I just try to forget about it and accept that we be confined to "business as usual"? Please help, Alice.