Let us not forget fucking

Of course you can use your fingers, tongue, and toys to bring her to an orgasm, but let us not forget good 'ol fucking. The best position I have found for bringing her to orgasm is on her back, legs and ass in the air. At this angle it is easiest to stroke into her G-spot. That much might seem obvious but the position has other benefits.

In this position you can use gravity to your advantage on the down stroke, thus using less energy and as such you can go longer before muscle fatigue affects performance.

Hold her shoulders or arms and you can bounce at a more rapid pace, pounding into her G-spot faster.