...another obvious answer would be to be more gentle and maybe slow down a bit when you "finger" her. One thing that I've noticed about the men that I've been with is that... when it comes to "fingering," they tend to be more aggressive than they're aware of... and, that's when things start to hurt! If you refine your technique, I suspect that you'll see a more welcoming reaction from your girlfriend.
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My boyfriend went down on me the first time when I was drunk. Normally I would stop him because I'm very nervous about that kind of thing. I was still a virgin at the time and alcohol gave me the courage to let him go. I remember it felt good, but i wasn't close to orgasiming. I faked one to make him happy. He went down on me a total of 6 times that night. By the third time I was sick of it and had no feeling left. I have continued to feel that way about oral sex. It can only feel good for a certain amount of time. However alternating fingering and oral sex is very enjoyable. My advice to you is to try again and when she stops you ask her if theres anything your doing specifically that she doesn't like. Ask if theres anything she would like you to try instead. Ask her what she wants most. That might help. As for the vaginal pain, make sure your only using one finger at a time at first. Make sure your hands are clean and your nails arent sharp. Move slowly inside her until she instructs you to go harder or deeper. She might also not be wet enough, if shes dry, try kissing a little longer or using a light lube on her. The biggest thing is to be open with her. Ask her what she wants. Be patient, she might be nervous. You sound like a good guy though and she'll see that especially if you talk to her. Hope that helps.
well maybe i could be the way u finger her or the way u play with her u kno clitoris my bf used to make me feel like that but how long have u been doing it maybe she just dont cofterable with it just use lubb or somthing