I was fingered for the first time and it hurt

It sounds like neither of you knew what you were doing and that caused the problems. He also may have broken your hymen when he inserted his fingers but I suspect most of your problem has to do with not being properly lubricated (wet). He rubbed you raw!!!

Next time make sure your vulva is lubricated and tell him to be gentle with the rubbing. The same goes for inside your vagina. If you have nothing else he can use spit to keep you wet.

A tongue is probably the greatest thing for rubbing a vulva and clit. It's naturally lubricated, never dries out and is soft with just the right texture to massage a clit perfectly.

Fingers are rough and have nails that can easily do some damage that you won't feel until afterward.