Wow sounds like she and you need to save your pennies and buy her one! Look at the Sybian and the Cheaper and possibly better one called Motorbunny! Good luck to you both!!!

We had access to the Sybian both with the old and the then newer dildoes. The more human shaped dildos where the best. Nt sure the company still offers them. It is very good. It is more of sit on it like a 1/2 barrel shape so her weight keeps everything deep inside her pussy or ass. The controls are easy to use and will rider your lady up and down quick and strong. When it was demoe dat a sex convention they let anyone wanting to try it out. Most of the gals almost had to be carried away. They all lovd it but the $$ was high as it is no! But worth it if you can afford it
There are also a few other toys sort of like the Sybian with prices up and down from this. Some are more like a fucking machine. Some ride your bed and some have stands at the end of your bed.
If your lady liked whatever you already tried then suck it up and buy that one . She already likes it. Once yu find the right position and place to put it so she can ride and gt off you will get the most fun out of that one. Find a way for her to use it as she sucks yu tool. Yu both can gt off and watch each other having fun.
Let us all know if you do buy one. Please post pix of her wit her O face a lot!!