The Male Penis
—Male penetration is a fantastic way to stimulate the G-spot. A woman should be relaxed and stimulated to get the most pleasure from the penetration. The G-spot is located on the anterior wall of the vagina, so consider positions that angle the penis toward the front of the vagina. A few different positions to consider are:
Doggy Style - With the woman on her hands and knees, her partner can penetrate from behind. She can lean forward or push her hips back, focusing on different angles until she finds one that hits her G-spot.
Cowgirl - With the male partner laying on his back, and the female straddling him on top, she is in complete control of the rhythm, depth, and most important, the angle of the penetration. This allows the woman to move around until she has found her G-spot.
Remember, the G-spot is located just inside the vagina, so depth is not as important as angle. The male partner can try slow movement back and forth instead of quick thrusts, as the idea is to stay in contact with the G-spot. Some women prefer steady pressure on their G-spots instead of the thrusting movement.
Fingers and Sex Toys
— A partners fingers can also make G-spot stimulation quite pleasurable, again using that same "come hither" motion. And if a woman is not shy around her partner, having her partner insert the G-spot stimulator can bring the two of them quite close together.
As with all types of orgasms and stimulation, the key to having an amazing G-spot orgasm is to take your time, enjoy the sensations. Experiment with what feels best, and what feels right. There is no right way or wrong way to stimulate a woman. There is just what feels good, and from that is where you take your queue.