if you push the bulb of the hitachi wand just right inside her hole (so she’s clenching and bearing down on the head) and turn it on, she’ll see god i promise you. bonus points if she’s tied up and you leave it inside for a while, turning the vibrations up. she’ll squirt in minutes and won’t be able to get it out, since she’s bearing down on it like a knot, just crying and convulsing while it stimulates her continuously from the inside out. just leave her there for a bit, gagged and teary with her legs spread as the handle sticks out of her pussy, go finish some work for a bit. her pussy will be swollen and fat and glistening around the wand when you get back, and your sweet girl will probably be in subspace, taking it helplessly like a good girl