My ex wife used to buzz herself like that and cum pretty quickly. If she rode her dildo at that same time she never showed me, but I can easily imagine.
Show this to the typical woman who says "honey, it's different for a women. We need to feel loved and wanted, and to be wined and dined. Then we needs LOTS of foreplay, and then finally after you stimulate just right for a LONG time, only then we might be able to reach an orgasm". Yeah, right!