If you've got forearm muscle, then fingering can be a very quick and powerful tool for making a girl cum.
A few years back, I was fingering this woman with a method I learned(from a porno). After she came she told me that she never came like that before, and it felt different from other orgasms she had. She described it as intense. Probably the same feeling as having your girl jerk you off once in a while. It feels refreshing and a bit more intense as she can 'pump' your penis as you're cumming.
It goes like this:
Have your woman on her back and sit by her side. You need to be comfortable so your arm can last a while, you'll see why.
If there's no way for you to sit, kneeling would work or standing by the side of your bed is good too.
I like to be in a position where my arm is comfortable and I can still get close enough to kiss her mouth and nipples while I'm warming her up and getting her wet. It's actually better, in my experience to have her as wet as possible before even touching her pussy. If she's drenched before you even touch it you'll have a really easy time, do this by lots of nipple and neck kissing and lots of regular kissing too. Make her feel like you've got all time in the world. Like you forgot she even has a pussy. You'll know she's good and wet when she starts grinding and breathing hard.
From this point you can go with your dick, tongue or finger and she'll cum pretty easily.
But using your finger just play with her area around her pussy a bit eventually rubbing her clit but don't focus for every long on it. Once she starts getting really turned on, slowly rub your middle finger down to her vagina- your palm on her clit and play with the opening a bit, that is, make it feel like you're going in but just stay on the outside. Do this a couple of times, each time letting your finger dive a little deeper into her opening, once you pass the first knuckle deliberately, but not roughly, sink your finger into her pussy up to about your 3rd knuckle -rubbing the well known g spot firmly. She will definitely moan. Don't let your middle finger come out now. Rub a few times keeping the pressure firm.
Now comes the actual method.
Insert a second finger, I prefer my ring finger because it's stronger in combination with the middle finger than the pointer finger is.
Place your opposite hand on top of her public mound, right above the clit. This hand is going to be pushing down, it won't hurt her. Your main hand is no longer using any sort of in&out motions. Imagine using those two fingers inside of her to lift her towards the ceiling. Your arm is in position and making a motion like you're punching the bed except all of the force is coming up not down. Once you're here your pace is fast. All of the pressure is on the roof of her pussy, the g spot. And you put as much intensity as you can. Like i said before the motion is like you're rapidly punching the bed Except opposite. No pressure coming down only up.
If my explanation is foggy, you're essentially jerking off her g spot with two fingers towards the ceiling with as much intensity as you can muster. Keep it up for a few minutes, your arm will be tired but push on! Soon you will feel puddles in your hand from your happy woman.
Also when she starts cumming, don't stop- keep your pace steady lifting a bit harder ( think when you're jerking and cumming and you squeeze yourself in time with the muscle contractions. )
When her orgasm is dwindling stop pumping and just hold pressure up there until she calms down then pull out slowly. Don't tickle her any more. Your job is done my friend.
