Yes.
Providing you are long enuf to reach the G-Spot, it varies some, but it is about 3-6 inches inside at the top. A little bumpy area, like textured more than bumps.
Anyway, have her on her back, you are on your knees, she needs to pull her legs up and force her pelvis up to you, you need to position yourself for max friction with the head at the top of her inside, if you're lucky enuf to be curved up it helps, then try to find that short range of motion that hits the G, then quickly stroke in that couple of inches.
Now she needs to squeeze down with her inner muscles, acting as tho she is trying to force you out, if needed have her rub her clit at the same time she feels you are on the G spot.
Now you need to pay attention here, as you really feel her building up pressure, quicken your strokes and pull out just as she is at max pressure. You both should be rewarded with a nice shower of love!!!
Oh, you must not release yourself, too soon, and if she is squirting, then wait for your O, as she will be so consumed with hers she won't really notice, LOL!!!!
After she does this a couple of times, she will be able to do it more often in different positions.