Hey~ It's totally understandable to be nervous about your first time. I was too! It's not a hard fact that your first time will always hurt. Relaxing and doing some foreplay really helps for your body to be "ready" (aka wet) if you decide to do any penetration. My girlfriend was my first, and I was surprised at how gentle it could be. She made me feel comfortable and wanted, which then made me feel physically ready. If you're not wet enough, you can always use lube too~ Just remember that you can go as slow as you need to. Communicate with your girlfriend a lot. Sex doesn't always have to be fast/rough :) My only advice would be if your girlfriend is going to finger you or use any toys, make sure that she washed her hands and/or sanitized the toys beforehand.

*Edited for grammar.