Girls, the best and most proven masturbation technique is to completely undress and get into an empty bath with warm water running out the tap. Depending on whether the taps are at the far end or on...
You can use sex toys and stuff. especially if your a girl, really stimulate.but also (if your a girl) put your shower head on full, like blasting, then use this on a circular motion over your clit. i...
use a chair leg. tilt it a bit so that it goes all the way. i love the sitting position for the girl where the penis it pointing straight up. try that one on the chair.
rubbing by your fingers...