I don't normally post on here, more of an observer. I resally enjoy fingering a pussy, my wife cums really quickly from my long fingers. The secret seems to be to add a little variation to the technique, strokes, circles, slow and fast. One long finger slipping into a pussy from behind as she is lying on her front with the fingers either side rubbing the pussy lips soon has her screaming into the pillow. Remember that you have 5 fingers and not all of them need to be in the pussy, use them to stroke and brush the clit or pussy lips. Sliding the middle finger in and out of the pussy and using your thumb to rub up and down through her pubic hair, bring your thumb and middle finger together as you slide out so they meet and gently pinch her clit and slowly back in again. Try rubbing the sides of the pussy walls, slowly work your way around, curl your finger up a little and slowly rotate it. It does help to have long fingers and the ability to wiggle just the tip of your finger against her G spot.
If anyone needs any demonstrations or more suggestions just drop me a message.
Fingers Mc Gee.