How can I find out ?

How can i find out my girfriend's Gspot? always she say touch my Gsopt which i dnt know where it is located. plz abet me to find out . It is shame to ask her !! so please help me .How can I find out ?
Well finding the G Spot is not an exact science. The G-spot is located almost 1.5 to 3 inches inside the vagina on the upper wall. When aroused it's about the size of a walnut, usually a bit longer than it is all-embracing. The position of the G-spot makes it impossible for most women to obtain a finger to it, but a partner should be able to surface it by inserting one or two fingers into the vagina after she is aroused.
The palm of the hand should be up if the woman is on her rear, and down if she is on her front; initially finding the spot may be easier if the woman lies on her front. The partner should be able to quality the G-spot with their fingers as a small lump within the vaginal wall. The G-Spot will feel somewhat bumpy and not as smooth as other areas of the vaginal wall.Once the spot have been located, it can be stimulate by moving your fingers within very small circles, or by doing a "come hither" motion near your fingers.
The G-Spot is an area on the front wall of your vagina that when stimulated, can result in women to orgasm and sometimes ejaculate. For some women, stimulating the G-Spot creates a more intense orgasm than clitorial stimulation. Not all women can hold an orgasm through G-Spot stimulation.
next time when u r beside her let her do what she requirements and likes.if u rate attention about everything she does u`ll certificate her G...after that u`ll know the moves whichi makes her merry...
good luck
The sensible entity to do (and the most fun) would be to ask her to take your appendage and guide it to her g spot