Stop fingering her in a painful way & learn how to do it right. Most people do it as though it is an obligation or a drilling process. Jabbing down there is not an effective way to turn her on and that’s why she’s finding it painful.
How to finger her like a pro
Wash your hands
This can never be emphasized to prevent bacteria in the skin & under their finger nails, presence of dirt on your nails gives her a burning sensation.
Trim your nails
Please don’t claw her vagina. Cut your nails to prevent tears in the vaginal mucosa.
Don’t just jump straight into fingering
Ensure a build up first, spend some time kissing, touch her boobs, kiss her neck & all over, prep her body for the moment.
Don’t move in & out super fast
You’re not drilling a borehole.. Use slow steady strokes & take note of what’s giving her pleasure then do it more.
Try the come hither gesture
Curl your index & middle finger gently back & forth inside. The clits is a must but don’t do it forcefully
Lube is key
The wetter the better. Don’t just finger, use your other hand in her body, play with her boobs, kiss
If she’s not enjoying fingering in her vagina, stick to clitoris. Clits is a power house of it’s own & it does the work just fine.