What are some good sex positions for girls with tight vaginas?
upside down
On top so you can control the insertion at your own pace, it will hurt less. Once he's all the way inside have him pick you up(if he can't manage to do this, you're not gonna have a good sex life anyway), and put you on your back with a pillow propping your hips up. Tell him to gently thrust, not too deep at first, and it will make it easy to find your g-spot this way and trust me you'll know when he does.
Another good one is basically both lie in your side and spoon. Have him enter from behind while one leg is up. It hurts less in this position and he can cup your boobs while you rub your clit for a lot of stimulation and physical closeness.
The more you get used to sex the less time it will take to adjust. And if you're extra tight please make sure he understands how important foreplay is.
Source: took me and my bf over a year to find positions that didn't hurt me and could help me cum