"sex adult product factory" revealed in front of her vagina, you'd better be used to position themselves (that is to open her legs and knelt between them). In this way, you can keep your finger straight and make sure your fingers can out of her body. This also reduces the chances of you missed the target.
"sex adult product factory" revealed that for most women, the clitoris is a very important part. When her vagina sufficient lubrication, or apply some thermal loading human lubricating fluid in your hand, then use your index and middle fingers to rub her clitoris. Her reaction will let you know, you're going to reach the goal. Continue your step, and slowly began to accelerate your speed. However, "sex adult product factory" to disclose if you have been on one kind of speed, it will make you end up losing focus. If she shows like "Do not stop!" Signal, then you do not stop.