Well, it’s supposedly about two inches in and on one of either side, but theoretically, you want to come about to approach this place very slowly. Begin with foreplay and then go down softly kissing her. Really, there are some things that will make her go nuts. Buy some sex toys. Build her up to the clit and just do the pancake maneuver (look this up) and/or do the vortex maneuver. GSPOT is the last thing you probably want to stimulate, first stimulate the clit.